We recently had new tenants move in across the street. They're...

We recently had new tenants move in across the street. They're very quiet, Christian folk but at least 2 nights a week they must have some sort of congregation. About 10+ cars line the streets making it impossible for the other residents to park anywhere. I have had my driveway blocked and my nature strip driven over several times. Fortunately, they don't party on too late and there is never any noise but when I come home from work and want to park out the front of my house so that my wife can get her car out to go somewhere, it's very, very annoying!!!