Any peace officer, any member of an organized fire department or fire protection district, any employee of the Department of Transportation assigned to maintenance operations, or any member of the California Highway Patrol may transport or arrange for the transportation of any person injured in an accident upon any highway to a physician and surgeon or hospital, if the injured person does not object to such transportation. Any officer, member, or employee exercising ordinary care and precaution shall not be liable for any damages due to any further injury or for any medical, ambulance, or hospital bills incurred in behalf of the injured party.