Lawtell post office box customers can go to the Opelousas Post Office, at 152 Wallior St. and get their mail today. Those customers should go to the Dutch Door of the Post Office, with a valid identification to retrieve their mail. A postal employee is available from 8:30 a.m. to 5 p.m., Monday through Friday, and from 8:30 a.m. to 12:00 noon on Saturday. This is a temporary measure, until the evacuation is lifted in Lawtell due to a train derailment.