“However, it does look like we will be getting a Walmart Super Store in Warrenton, about a mile from Fred Meyer in late 2016.”
Walbots typically use MURS to communicate bewteen themselves. Most commonly they camp out on 4 and 5 (154.570/600) but can also sometimes be found on the lower three (151.820/880/940). PL scan to see if they are using tone or DCS but most reportedly use carrier squelch.
Now that you have this information, program it into your UV5R and have a field day fucking with the Walbots of the world.