I feel your pain. My dad and I just went though this with his project of a 65 ford pickup. My Z is in the garage so his pickup is outside. The neighbors complained, and apparently in Oregon or maybe the city I live in. It doesn't matter if the car is covered or even in your back yard if it is missing 3 vital components to the car running or it is not in running condition and not titled in Oregon with current tags they can come in and tow it away. Even out of your back yard!

Throw a car cover on it. Cheap and it would be screened from sight.

As a fellow resident of Fairfax, I make this recommendation for keeping the car: Register the car, pay the taxes, and get the antique plates. You were going to need to do this anyway, why not now?

With the antique plates, you don't need to get a safety inspection. So once you bolt the plates on the car it will be legal to drive. At that point who's to say you aren't driving it? If you want to throw John Law another curve, move the car in the driveway occasionally.

My friend's and I also have the habit of disabling a car in the driveway for extended periods of time, and I don't know of anyone who has been challenged to start or drive the car.