They have to send a violation notice first. Since you thru a rental agreement have constructive ownership of the property, and the car is yours, a violation notice sent to him is probably invalid. The notice would not include any due fees as you have a right to a hearing to contest said notice. I'd get the required item done before a notice gets sent, especially since you have 2 of the 3 items a car needs to be on a public road in place.