I'm guessing the time and ammo it took to kill her amounts to more dollars lost than she could ever shoplift for. Did the store get their money back? No? Then what the fuck was the point? Who was actually helped that day?
The point of having police is to make society livable. This seems to be the opposite of that.
It would block it all the same if they parked in the spot. Assuming this person is handicapped themselves they must've figured "either I block the entire parking spot for everybody, or I block it only for those that need the loading bay area for a wheelchair lift."
I honestly think it's meant to be courteous and it does work out that way for some if this person's only alternative is to take up the whole space.