As far as improvement in conditions go? I think petsmart specifically needs a bigger reptile display. The entire thing is pretty much a 4 foot wide by 6 foot tall display, with the snakes and chameleons on the top squeezed into tiny enclosures that are only a little bigger than a 5 gallon tank, usually with 2 or 3 animals sandwiched in. It's an endcap display converted to a caging system. It's not like they couldn't do bigger, the small mammal and bird sections are both more than twice the size of the live reptile section even though the total numbers of animals in each section is about the same. It isn't a huge change, and a store could use a large singular reptile display to a stunning advantage.

Imagine an elaborate reptile enclosure the size of the bird endcap, which is just a single cage? Some pretty tropical setup with some brightly colored chameleon or python would grab my attention without a doubt. Heck, even if you took one the size of the double small animal ends, a desert setup for beardies on top and a tropical setup for the water dragons on bottom? More room for the reptiles that could use it, and a stunning display to draw in attention and sales, win-win.

As far as husbandry errors go, it's really on the people on the floor to want to correct them. Me dad used to say "You can't teach want-to", and I think it applies in this situation.