California Code, Vehicle Code - VEH § 22507.8

(a) It is unlawful for any person to park or leave standing any vehicle in a stall or space designated for disabled persons and disabled veterans pursuant to Section 22511.7 or 22511.8of this code or Section 14679 of the Government Code, unless the vehicle displays either a special identification license plate issued pursuant to Section 5007 or a distinguishing placard issued pursuant to Section 22511.55 or 22511.59.

(b) It is unlawful for any person to obstruct, block, or otherwise bar access to those parking stalls or spaces except as provided in subdivision (a).

(c) It is unlawful for any person to park or leave standing any vehicle, including a vehicle displaying a special identification license plate issued pursuant to Section 5007 or a distinguishing placard issued pursuant to Section 22511.55 or 22511.59, in either of the following places:

(d) Subdivisions (a), (b), and (c) apply to all offstreet parking facilities owned or operated by the state, and to all offstreet parking facilities owned or operated by a local authority. Subdivisions (a), (b), and (c) also apply to any privately owned and maintained offstreet parking facility.