Damn that sucks. Hopefully you can get him towed at some point.
Had a guy park his beater saab in front of our driveway once in college, blocking 2 cars in. There was a ton of open spots on the block, so it was really annoying. One of my roommates jimmied open the rear passenger door with a coathanger, and we rolled the car forward out of the way. He had a ton of crap in his car (mcd's bags, coke cans, etc.), so we piled as much trash onto his driver's seat as possible. About 4 hours later we hear the guy come back, open his door and start cursing up a storm. It was very satisfying.

h: