I would like to make a few comments about this thread. Obviously, since the fecies was frozen in the box, it was left outside in the elements over night. The contents would not be frozen if they were in a building over night and then transferred to the truck if the local conditions were 25 degrees. There are some things to be considered when shipping with heat packs. I have had several customers comment about my lack of heat packs at times. Weather conditions along the entire route of the snake must be considered when deciding whether or not to use heat packs.
I have left a shipping box outside over night at 20 degrees, and the 40 hour heat pack will raise the temperature in the box about 20 degrees. If I would have had a snake in that box, it would have gotten down to 40 degrees, but would not be harmed. If temps in route to your location in any town are near 70 degrees, this means that the temp in the box with a heat pack would be at least 90 degrees, and most likely much higher. I am sure a 40 hour heat pack will raise the temp more at 70 degrees than at 20 degrees.
The goal during shipping is to get your new snake to you safely. Since snakes brumate in the wild, temps above freezing will not hurt them as long as their stomachs are empty. I personally do not believe that snakes are stressed much at all during shipping and at low temps, they are just sitting there waiting to warm up. After they warm up to normal temps, I do not see any reason to wait 7 days to feed them, especially since they shouldn’t have been fed prior to shipping. Shipping is not the cause of most stress to Snakes, over handling by their new owners is usually the culprit.
I personally do not like to ship unless the temps are between 20 - 90 degrees, but summer shipping scares me. I have never lost a shipment in the winter, but a few during the summer. Ice packs only last about 12 hours and are gone. There are many things to consider during shipping, and putting a heat pack in the box automatically if temps are cold on the receiving end, is not always a good thing. If it is 20 degrees in your area, but 75 in Memphis TN, where almost all FedEx packages go through, your snake would cook in route.
Obviously mistakes were made during this shipment, but I suspect that the package was left in the truck over night. It is really not possible to keep the temp in shipping boxes at exactly 80 degrees during shipping. I feel it is much more dangerous to ship during the Summer over Winter conditions. All it takes, is a driver to put your shipment on the hot pavement for a little while, or in a hot place in their truck and the snakes are very stressed and at high risk of death. Heat packs are a fantastic tool during shipping, but I would never use one if temps are around 70 degrees in any town along the route of your package.
Obviously, if temps are 25 in your area and 90 in mine, then the shipping should be postponed until temps in both areas are acceptable. I personally would not have much of a problem shipping a snake where local conditions are 25 degrees without a heat pack. If the package was handled correctly, it should have arrived in perfect condition and not expose to 25 degrees overnight. I would only ship if the package was to be delivered by 10am.
This is another thing that must be considered during shipping. There are a lot of areas that deliver by 10 am is not available. Some are by noon, some by 4:30 and some by the end of the day. If you use a heat pack in an area where the night time temps are 25 degrees, but deliver is by the end of the day, and the temps are going to be 70 that day, there will be the risk of over heating.
I believe shipping of snakes with FedEx is very safe. I am not sure why people think Corns are so stressed during shipping. They are in a closed dark box. Cool temps should not stress them, but hot temps certainly will. I use heat packs a lot, but they are not something that I put in the box automatically when my temps outside or the customers night time lows are below freezing. I believe the shippers biggest mistake was shipping the snake with food in its digestive track. This is definitely a no, no during cold conditions. The shipping company obviously did not handle the package well, or it would not have arrived frozen if the temps were 25 degrees, unless the area of delivery had a late delivery time and the package sat in the truck all day at 25 degrees. It sounds like the shipper and shipping company both made mistakes.
My only reason for responding to this thread was mainly to caution against using heat packs automatically when temps are cool. I have had complaints about not using heat packs when the temps are 50-60 degrees in the customers town. “They arrived frozen!”, which was not actually the case, and in route temps were near 80 degrees. If heat packs are used under these conditions the snakes will certainly die due to over heating. We definitely need to be aware, that temps in this country can vary from well below freezing in some areas, while being near 100 degrees in other areas.
Use heat packs with caution.