Cal. Veh. Code § 22659
Any peace officer of the Department of the California Highway Patrol or any person duly authorized by the state agency in possession of property owned by the state, or rented or leased from others by the state and any peace officer of the Department of the California Highway Patrol providing policing services to property of a district agricultural association may, subsequent to giving notice to the city police or county sheriff, whichever is appropriate, cause the removal of a vehicle from the property to the nearest public garage, under any of the following circumstances:
(d) When the person or persons in charge of a vehicle upon the property are by reason of physical injuries or illness incapacitated to that extent as to be unable to provide for its custody or removal.
The person causing removal of the vehicle shall comply with the requirements of Sections 22852 and 22853 relating to notice.