I've had packages come to the closest distribution center nearest me. And the next time I check the tracking, it's going back to the original place where it started. It's always the same excuse, the package was left on the truck and sent back. Never makes sense as it still has a few stops to make going there.
Last year I ordered a brush and it was on hold in Chicago for a month. The seller tracked it down and it was stuck in customs because they thought it was being shipped to North Korea
Fedex is the worst... on multiple occasions I've witnessed them drive up my driveway, decide that no one was home, and then drive right back out without even coming to the door to check.
Finally due to be delivered today. 2 weeks. Still waiting on my package from Bulgaria. (No tracking number)