Wonder if he can sue the city and neighbor?
Good question. There are, of course, two sides to this story and the other side is often just as dirty. But, for the moment, let's go with the disabled vet.
He may have missed a great opportunity after the city ordered the "stinky" neighbor to remove work-related vehicles. Several time-stamped photos showing the parked vehicles together with the front page of the day's newspaper emailed to the mayor and others might have resolved the matter.