I believe they can send via USPS too, not just Fedex and UPS...They can find the cheapest way to send...
While the USPS is sually the cheapest way to ship, their availability to offer tracking updates or information of any sort needs to come out of the dark ages. I've had priority mail packages left sitting on my door step that was marked signature required, with no signature given. I've had packages deliveried to my door and you can check the tracking number 2-3 days later and it still shows as a pending shipment......they need to do better than that. So remember that when it comes to mail/package service you get what you pay for.
Last time I went to the one at 40/42 they had a whopping 79% health code rating. We walked out the door without sitting down and have never been back! Conversely, the WH at the Benson exit off 95 had a 92%.