A guy in my old neighborhood kept getting the cops called on him (and everyone else on the block including myself) by some old shitbag for having an unregistered car. So he parked his huge registered trailer diagonally across the yard, and he will park the most haggard half-parted out cars on it. Problem solved. The code enforcement guy acknowledged that the guy was an asshole, and told me to cover my car. The problem went away.
BTW your neighbor needs to subscribe to a few dozen magazines this week, under the “pay later” option. 