If you were the registered owner at the time the ticket was issued, you are responsible for the ticket. Registered owner information is obtained from the Department of Motor Vehicles (DMV). When you sell a vehicle, you are responsible for notifying the DMV that the vehicle is no longer in your possession, and for providing the DMV with the name and address of the new owner.
If you continue to receive parking tickets for this vehicle, the DMV has your name on record as the legal owner. You must go to the DMV and complete a Release of Liability. Once you have done so, you must also complete a Declaration of Non-Ownership form and mail it to:
City of Palmdale
c/o Parking Citation Service Center
P.O. Box 11923
Santa Ana, CA 92711