In any hearing on a charge of illegally parking a motor vehicle, testimony that a vehicle bearing a certain license plate was found unlawfully parked as prohibited by the provisions of this Traffic Code, and further testimony that the record of the State Registrar of Motor Vehicles shows that the license plate was issued to the defendant, shall be prima facie evidence that the vehicle which was unlawfully parked, was so parked by the defendant. A certified registration copy, showing such fact, from the Registrar shall be proof of such ownership.