You Park Like An Asshole
UPDATE: It appears that the "youparklikeanasshole" site I visitedis actually an infringment on an existing product that has been sold for a while. I've removed the link to the site out of respect to the original idea distributors, however my two cents:
First, when I was in grade school a friend of mine gave me a "leave-behind" that looked veeeery similar to this. It didn't actually say "you park like an asshole" on it, but it did refer to the driver as an asshole and had a checklist of infringements on it. That was over 20 years ago, and somehow I'm in doubt that it was produced by Cold Cocked Cards. It looked like one of those jokes you see posted on the wall of your local auto body shop, photocopied to death. If I recall correctly, it had Mickey Mouse on it with his middle finger out.
Second, the addition that the youparklikeanasshole site provided that made it cool was the ability to upload and categorize photos of the asshole parkers. Connecting the real-world leave-behind to the online world is a great idea and is what pushed it over the top from an "interesting idea" to a "cool site." It might be in Cold Cocked Cards best interest to either partner with youparklikeanasshole or settle or something because the photo upload thing is an idea that shouldn't be missed.
Anyway, it sucks when someone steals your idea, so I hope things pan out for everyone involved.