Positioning of Plates
5201. License plates shall at all times be securely fastened to the vehicle for which they are issued so as to prevent the plates from swinging and shall be mounted in a position to be clearly visible, and shall be maintained in a condition so as to be clearly legible. The rear license plate shall be mounted not less than 12 inches nor more than 60 inches from the ground, and the front license plate shall be mounted not more than 60 inches from the ground, except as follows:
(a) The rear license plate on a tow truck may be mounted on the left-hand side of the mast assembly at the rear of the cab of the vehicle, not less than 12 inches nor more than 90 inches from the ground.
(b) The rear license plate on a tank vehicle hauling hazardous waste, as defined in Section 25117 of the Health and Safety Code, or asphalt material may be mounted not less than 12 inches nor more than 90 inches from the ground.
(c) The rear license plate on a truck tractor may be mounted at the rear of the cab of the vehicle, not less than 12 inches nor more than 90 inches from the ground.
(d) The rear license plate of a vehicle designed by the manufacturer for the collection and transportation of garbage, rubbish, or refuse and which is used regularly for the collection and transportation of that material by any person or governmental entity employed to collect, transport, and dispose of garbage, rubbish, or refuse may be mounted not less than 12 inches nor more than 90 inches from the ground.
(e) No covering shall be used on license plates except as follows:
(1) The installation of a cover over a lawfully parked vehicle to protect it from the weather and the elements does not constitute a violation of this subdivision. Any peace officer or other regularly salaried employee of a public agency designated to enforce laws, including local ordinances, relating to the parking of vehicles may temporarily remove so much of the cover as is necessary to inspect any license plate, tab, or indicia of registration on a vehicle.
(2) The installation of a license plate security cover is not a violation of this subdivision if the device does not obstruct or impair the recognition of the license plate information, including, but not limited to, the issuing state, license plate number, and registration tabs, and the cover is limited to the area directly over the top of the registration tabs. No portion of a license plate security cover shall rest over the license plate number.
(f) No casing, shield, frame, border, or other device that obstructs or impairs the reading or recognition of a license plate by a remote emission sensing device, as specified in Sections 44081 and 44081.6 of the Health and Safety Code, shall be installed on, or affixed to, a vehicle.
Amended Ch. 704, Stats. 1994. Effective January 1, 1995.
Amended Sec. 16, Ch. 1007, Stats. 1999. Effective January 1, 2000.
Looks like a fix-it ticket to me. 