Greyhoundgirl- I checked into our state, and it is illegal for any dog or cat to be sold in a pet type store under the age of 8 weeks. They can buy from a private breeder but not if the breeder is licensed with a business license. There are laws in place- but not sure about your state.
Call your County offices- they can tell you if it is legal. And any dog or cat over the age of 4 months MUST have a rabies vaccine. There is talk the law will change to 12 weeks as they had some kittens at a petsmart that one had rabies and all were distroyed. There is talk to raise to raise the limit to force a rabies vaccine for a dog or cat to be shown to the public.
Sick as this is, if the laws force people to do the right thing for other things such as a rabies vaccine, maybe it will keep these poor little guys out of this situation..