I don't know if this is an "urban myth" but it's funny unless your car was towed! It came off of Netscape's 'Offbeat News".

"Workers at a DaimlerChrysler plant in Kokomo, Indiana,
should drive a Chrysler model or they may find their car in
Indianapolis, 50 miles away. That's because a rule limits
parking space for non-Chrysler cars. Violators will be towed."