WTF why didn't you call police.

Hoodlums = thug,gangster,agressive young criminal. I'm surprised they even have a job. I suppose they should all be fired.

I would never park my car where it was even a remote chance of leaves and grass being blown in the window.

Do you think they blew the leaves and grass in your car on purpose? If that were the case I'd be pissed too.