HE'S OUT!!!
Thank god!!!!! Thank you sooo much for the box cutter idea!! :bowdown: :bowdown: :bowdown:
PHEW!
I got bit more than a few times, but slowly but surely I chipped enough away to set him free. I took a few pictures, but my camera battery promptly died. There was still a bit of swelling in his neck, but after setting up a new paper towel only bin for him it looks normal. I'll upload the photos I took after my battery is charged so we end on a good picture note instead of the gruesome scene above. The main thing I'm worried about now is the stress he was in during the whole thing, the skin loss, and possible organ problems from being squeezed, but hopefully he'll be ok. I'll leave him alone for awhile without any interruptions and wait awhile before I feed him to make sure everything is okay.
Thanks again to everyone who offered help!