Now to be fair, there are those with handicap stickers/tags that are perfectly capable of walking. In fact, in some cases I know of, they really need the exercise. And then there are a few I know of that park in the space, walk to the back of the vehicle and unload one of those riding machines and ride it into the store.
OH! And those places for pregnant women. Isn't walking a good thing in most of those cases? OR the new mom?!?!? What's up with that? What if the Dad takes the new born?? Where does he park?
AND while on the :soapbox: you really don't know the intent of that person that parked there and ran into the store. There could be a family emergency. Baby at home screaming its head off cause they are out of formula and need it quick.