California Code, Code of Civil Procedure - CCP § 720.550

(a) If the secured party or lienholder does not file a third-party claim with the levying officer pursuant to Chapter 3 (commencing with Section 720.210) within 30 days after service of the demand, the secured party or lienholder shall be deemed to have waived any priority the security interest or lien may have over the creditor's lien on the personal property levied upon and the property may be applied toward the satisfaction of the judgment free of the security interest or lien.

(b) If the secured party or lienholder is deemed to have waived any priority over the creditor's lien pursuant to subdivision (a) and the creditor's lien on the personal property is released, the security interest or lien is restored to its former position of priority.