Inspired by these assorted assorted internet memes and funny pictures that made me laugh out loud, it took me all of 2 seconds 20 minutes to whip up this downloadable PDF file (380kb) and post it here.
It's simple, print it out on any laser printer - 8.5" x 11" paper should do it, and save your color ink for something else - it prints great in black and white! Cut it into four equal quarters and store in your glove compartment. Game's on!
Winner is the first to get rid of all four sections - you need to find all four examples of terrible parking lot behavior and slip one of these devilish reminders of skullduggery under their window shield wipers. You'll have to find a double-spot taker (two of them officially), someone who neglects the clearly marked parking lines, and some idiot too busy to drive while on their cell phone (bonus points for placing unnoticed!). Good luck on your mission!