Total firetruckin bullshit!

Thats about all I can do.
I can shoot the dog if need be, but I think the police would want to do more than give me a ticket for disharging a firearm in the city limits at the people.

Seriously though, I would never do that but it's interesting to entertain the thought sometimes.:D

Simple. I promise you whatever city or county municipality you live in has a leash law that states dogs have to be restrained to the owner's property. As said earlier, get video and pictures of the dog on your property. Law enforcement will have to act with that kinda evidence.