There is hope! That really sucks, but I'll tell you that I've had three escapes in the last year, and all three snakes were found within a week. My little charcoal hatchling escaped and I found her six or seven days later in the bath tub. She'd slithered out of her cage, down the bookshelf her cage was on, across the apratment, up a potted plant next to my bath tub and finally into the tub. The journey took her a week. That exact same journey was taken by another hatchling only months later. I found him in the tub after a day or so. Finally, one of my adults escaped (though I hadn't noticed) and my GF found the five foot motley in her purse as she was walking out the door!
So, all this is to say, there is much hope that your baby will be found eventually. Good luck!