Check the Ma & Pa stores. You may need to do a google search or the phone book for exotic pets. It just maybe worth a drive to go to a small store.
And I know how frustrating it is to try to educate the store owners. There is a small pet store near me that keeps his hermit crabs in a tub on the floor. When I approached him on it he told me that he just doesn't have the room to give them a tank and the store has enough humidity for them.
I have since decided not to go back to him as the crabs I bought from him never survive. I have one left from him that has dug down, hopefully to molt. I don't want to dig her up to check on her yet.