I wouldn't destroy someone else's property even though he is acting like a total douche. the proper thing here would be a tablespoon of Vaseline under his door-handle, sit back and watch the hilarity ensue when the owner returns to the vehicle.
:awe:Toss all of your trash and any other junk you want to get rid of in the back of the truck then call the cops and deny any knowledge of the trash and junk. Cops will make the truck owner take it with him.
I would have parallel parked in front my of driveway boxing the truck in, then sat in the driveway and had a beer. Wouldn't be in a rush to move my car to let them out either.
