Cal. Code Regs. tit. 2 § 5039
It shall be unlawful for any person to park or to cause, allow, permit or suffer to be parked a vehicle in any parking meter space without immediately depositing or causing to be deposited a coin or coins in the parking meter as hereinbefore provided. It shall be unlawful for any person to cause, allow, permit or suffer any vehicle to remain in any parking meter space for more than the time indicated by proper signs placed on such parking meters indicating the maximum parking time allowed in such parking meter space or during any time the parking meter is indicating that time has elapsed for which coins of the United States of America may have been deposited in said parking meter provided, however, that the provisions of this section shall not apply to any vehicle described in Section 21055, emergency vehicles exempt herefrom.
Cal. Code Regs. Tit. 2, § 5039
Note: Authority cited: Section 3965(c), Food and Agricultural Code. Reference: Section 21113, Vehicle Code.