Is this a dick move?

You can't stop them, but you can scare them off.

In my city, there's a 72-hour street parking limitation. After a car hasn't moved for 72 hours, you can submit the car's info to a station or online, at which time the parking enforcement people will head out and tag the cars. Another 72 hours and they're still in the same spot? Impounded.

Have neighbors (with their own parking lot, FWIW) who park on the street and leave their cars for a week-plus. Slowly but surely, they've "found" their parking spots in the lot.

 

Kentucky is very, very sticky about car registrations, as I recall. (I lived in Northern Kentucky for a while, and once had to shoo off a tow truck because of a sticker that was one month expired.) One of the reasons they're so sticky is because it's expensive to register a car there, compared to Ohio -- so expensive I actually considered using my Ohio work address to register my car. This was apparently fairly common practice until the city cops in Newport, Bellevue, Covington, et al, started cracking down hard.

Killick, it would be a dick move indeed, but I'm not sure that would stop me in your case.