I hate mindless criminal damage like this. Im a copper and it really makes my blood boil with $hit like this. I had my last car done to the same extend as yours. There was no reasoning for it other than I had just cleaned it so it was looking nice! I don't actually get what these people gain from doing this! They gain nothing what so ever! Its absolutely retarded and backward! It upsets the owner, causes public money to be wasted trying to locate the almost always unlocatable.....I wont talk further as im not allowed lol! Sorry OP. I do feel for you.