Wouldnt make a difference. Most people think this is normal practice. Think about how many people come to this site that have had snakes and no true clue on husbandry.....
Getting a pet store to change is nothing if they are still giving out bad information.
If you really want to make a change, inform people of the correct way to keep animals. Expand their knowledge on husbandry.
I kind of feel lile Smokey the bear...... Only YOU can prevent bad husbandry practices.