Cal. Veh. Code § 22651.1
Persons operating or in charge of any storage facility where vehicles are stored pursuant to Section 22651 shall accept a valid bank credit card or cash for payment of towing and storage by the registered owner, legal owner, or the owner's agent claiming the vehicle. A credit card shall be in the name of the person presenting the card. "Credit card" means "credit card" as defined in subdivision (a) of Section 1747.02 of the Civil Code, except, for the purposes of this section, credit card does not include a credit card issued by a retail seller. A person operating or in charge of any storage facility who refuses to accept a valid bank credit card shall be liable to the owner of the vehicle or to the person who tendered the fees for four times the amount of the towing and storage charges, but not to exceed five hundred dollars ($500). In addition, persons operating or in charge of the storage facility shall have sufficient funds on the premises to accommodate and make change in a reasonable monetary transaction.
Credit charges for towing and storage services shall comply with Section 1748.1 of the Civil Code. Law enforcement agencies may include the costs of providing for payment by credit when agreeing with a towing or storage provider on rates.
Ca. Veh. Code § 22651.1