When I lived in GA, had the same thing happen.

Shipped some handguards to someone that was about 3 hours away. When he called a week later I pulled up tracking and it had been swirling around Atlanta the entire time. I think it was scanned at 6-7 different locations, north, south, east and west of town. It even looked as if it was headed out to him once, then it got sucked back into Atlanta.

He he eventually got it, about 2weeks after I shipped it.

I think their automated tracking/routing system gets glitches sometimes. That's why I always get tracking, covers me when the post office screws up.