Well, I'm going to contact a reptile rescue in the area tomorrow to see if they can take it, in which case I'll try to get the snake for them (it's 1.5 hrs away). That's assuming it hasn't been sold, since it was posted a week ago.
I'm reluctant to call AC at this point because I think they'll just euthanize it. Thanks everyone, for the advice. Seeing this kind of ignorance and callousness just makes me sick.