California Code, Civil Code - CIV § 2081

When any goods, merchandise, or other property has been received by any railroad or express company, other common carrier, commission merchant, innkeeper, or warehouseman, for transportation or safekeeping, and is not delivered to the owner, consignee, or other authorized person, the carrier, commission merchant, innkeeper, or warehouseman may hold or store the property with some responsible person until the freight and all just and reasonable charges are paid.