Cal. Veh. Code § 11726

Any licensee suffering pecuniary loss because of any willful failure by any other licensee to comply with any provision of Article 1 (commencing with Section 11700) or 3 (commencing with Section 11900) of Chapter 4 of Division 5 or with any regulation adopted by the department or any rule adopted or decision rendered by the board under authority vested in them may recover damages and reasonable attorney fees therefor in any court of competent jurisdiction. Any such licensee may also have appropriate injunctive relief in any such court.