Although I strongly disagree with the sale of animals on the streets, isn't the parking lots private property? That would mean that the property owner would have to have the permit. These animals look good as pups, but people soon realize that they are a nightmare. They should not be allowed to breed. This is basically a scam.
Just make it illegal to sell animals from these areas. They are a traffic hazard because of the lookeloos and can cause accidents. A heavy fine and confiscation of the animals for those brave enough to break the law. If they want them back they would have to get them from the pound where they are spayed/nutered which would make the AKC/CKC registered animals worthless. Put an ad in the paper like most other people. The only way would be to sell them from private property with a permit.