These stupid sovcit fuckwits and their “not for commerce” plates…

What they should be doing is conveying the vehicle to the nearest navigable waterway, and putting it on the boat launch ramp, allowing it to touch the water.

Now, it is no longer a land vehicle at all. It is a self-portaging, sea-going vessel. So long as you convey it regularly (monthly) between sea ports (boat ramps), it is now a boat, not a car. Land-based police have no jurisdiction over it, and it is no longer restricted to noncommercial use only.