Okla. Stat. tit. 13, § 13-67: Notice to consignee - Safekeeping pending removal

If, for any reason, a carrier does not deliver freight to the

consignee or his agent, personally, he must give notice to the

consignee of its arrival, and keep the same in safety, upon his

responsibility as a warehouseman, until the consignee has had a

reasonable time to remove it. If the place of residence or business

of the consignee be unknown to the carrier, he may give the notice

by letter dropped in the nearest post office.