What happened to knocking on your neighbors door and asking them what they have going on?
Why automatically bring in the county into it? We have many cars parked in our cul-de-sac, all the time. We've filled up every driveway and the sides of the street before. But we all know each other, and know what is going on with our neighbors. If they have something going on, I usually know and will help(we have extra space so people can park on our property if need be).
I just don't see where the county has a leg to stand on as far as citing them. This should have never been their business in the first place. This could be taken care of with a knock on the door and friendly conversation.
What kind of neighbors do the Pastor and his wife have?