California Code, Vehicle Code - VEH § 22652

(a) A peace officer, as 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 engaged in directing traffic or enforcing parking laws and regulations of a city, county, or jurisdiction of a state agency may remove any vehicle from a stall or space designated for physically disabled persons pursuant to Section 22511.7 or 22511.8, located within the jurisdictional limits in which the officer or employee is authorized to act, if the vehicle is parked in violation of Section 22507.8 and if the police or sheriff's department or the Department of the California Highway Patrol is notified.

(b) In a privately or publicly owned or operated offstreet parking facility, this section applies only to those stalls and spaces if the posting requirements under subdivisions (a) and (d) of Section 22511.8 have been complied with and if the stalls or spaces are clearly signed or marked.