I know this might not be the time, but...
Are you sure about that? That could make your snake hard to sell, cedar can have neurological effects on reptiles (or even kill them). Unless you meant cypress, I'd change that substrate ASAP, for your snake's sake.
Anyway I would also suggest fighting them on this, snakes might be "exotic" but ball pythons are in no way dangerous. I would offer to take her, but I can't afford a piebaldBest of luck to you.