I agree with the above posts, speak with the manager and if he decides to play ignorant go up the chain from there. Contact BBB, contact the police and file an abuse report. You can also find out who your local news consumer reports rep is and contact them with the story.

Unfortunately saving one animal from abuse by buying it is just enabling them to buy more to replace it. Best course of action is to smear the pet stores name as much as possible in the public eye and put them out of business >