You could provide a copy of the
videotape to the owner, and inform them of what your rights are and
that you have a right to kill their dog if it pees on your vegetable
garden.

Or you could try to get it to eat daylilies........

I still think the electric fence is the easiest solution, or failing that a
rabid pit bull with an invisible fence to keep it on your side of the line -
and warn the neighbours that if their pooch ventures over the line he is fair
game - literally.......