Cal. Vehicle Code § 22651.3

(a) Any peace officer, as that term is defined in Chapter 4.5 (commencing with Section 830) of Title 3 of Part 2 of the Penal Code, or any regularly employed and salaried employee, who is engaged in directing traffic or enforcing parking laws and regulations, of a city, county, or jurisdiction of a state agency in which any vehicle, other than a rented vehicle, is located may remove the vehicle from an offstreet public parking facility located within the territorial limits in which the officer or employee may act when the vehicle is known to have been issued five or more notices of parking violation over a period of five or more days, to which the owner or person in control of the vehicle has not responded or when any vehicle is illegally parked so as to prevent the movement of a legally parked vehicle. A notice of parking violation issued to a vehicle which is registered in a foreign jurisdiction or is without current California registration and is known to have been issued five or more notices of parking violation over a period of five or more days shall be accompanied by a warning that repeated violations may result in the impounding of the vehicle. (b) The vehicle may be impounded until the owner or person in control of the vehicle furnishes to the impounding law enforcement agency evidence of his or her identity and an address within this state at which he or she can be located and furnishes satisfactory evidence that bail has been deposited for all notices of parking violation issued for the vehicle. In lieu of requiring satisfactory evidence that the bail has been deposited, the impounding law enforcement agency may, in its discretion, issue a notice to appear for the offenses charged, as provided in Article 2 (commencing with Section 40500) of Chapter 2 of Division 17. In lieu of either furnishing satisfactory evidence that the bail has been deposited or accepting the notice to appear, the owner or person in control of the vehicle may demand to be taken without unnecessary delay before a magistrate within the county in which the offenses charged are alleged to have been committed and who has jurisdiction of the offenses and is nearest or most accessible with reference to the place where the vehicle is impounded. (c) Evidence of current registration shall be produced after a vehicle has been impounded. At the discretion of the impounding law enforcement agency, a notice to appear for violation of subdivision (a) of Section 4000 may be issued to the owner or person in control of the vehicle, if the two days immediately following the day of impoundment are weekend days or holidays.