I ran I to a similar situation recently and am still trying to decide what to do. Thankfully mine is really a matter of cleanliness and proper enclosures as these snakes seemed to be appropriate weights. Since its a small shop, I'll likely end up volunteering there in an effort to educate them. Unfortunately, probably isn't a option in this case.

I wouldn't be able to help myself, I'd go buy him after a quick trip to pick up a tub and cheap supplies even if it meant rearranging a closet for space.