any one of them could be costly and dangerous.
I don't think revenge is good and I find that attacking ones vehicule is really low.But if you really got to do something to his truck I'd go for:
1.remove the valves from his tires
2.write something on the sides and maybe do some drawings on the sides and top with shaving cream.That'll burn the paint and even when he washes it up,it will show up because the paint won't be the same under
