Cal. Fin. Code § 22805

No provision of this division imposes any liability on a provider as a result of the actual Annual Percentage Rate (APR) charged by a provider differing from the Estimated APR disclosed in conformity with any regulation, order, or written interpretive opinion of the commissioner or any such opinion of the Attorney General, whether or not such regulation, order, or written interpretive opinion is later amended, rescinded, or repealed or determined by judicial or other authority to be invalid for any reason.