Two days ago I found a baby garter snake in the school parking lot. I didn't think it was a good place for many reasons 1 being the amount of cars there due to parent teacher conferences. Now what should I do? My son is reluctant to let it go. Local pet shop said I should let it go. Thought my backyard would be ok but no natural water. Although I have seen a big one dead there that a car hit. Will it be able to get into hibernation in northeast pa in time? Thanks for any help in guiding me.