A lot of animals in these pet stores are not cared for properly because the owners/employees/etc are not educated about the care of the animals or they just don't care. If you see that they are in serious health decline you can contact the health department or check with your state's wildlife agency.

I only mention this because I know of a pet store that had broken glass in enclosures with animals, no heats on animals that required heat, and also had certain types of animals that were not to be displayed/sold in the state. Not sure what happened in this particular case, but if it upsets you bad enough to where you want to take action, there are places that can be notified.