I know the feeling. I don't even like parking my car there because I've already discovered it was hit once while parked there. Luckily it only scraped the paint on the bumper. I've also come back to my car to find someone parked too close or some idiot who didn't pull into the spot all the way so the back half of their car is sticking out into the roadway. Also, I've seen cars parked so crooked its ridiculous. Then there's the people....
Personally when I go to Walmart I park farther out in the lot. A full size club cab long bed truck doesn't fit so well in parking spaces so it's easier to park where there are fewer vehicles.