Opted for Fed Ex but showing USPS under tracking

[Samurai Vaper]

I just placed an order on 01/05/12 and opted for the free 2 day Fed Ex since I qualified for it. Today, 01/08/12, when I tracked my order, it is showing the carrier as USPS.
Anyways I opened a ticket with CS and am waiting for their response. I just hope they didn't send it USPS cause I'm gonna have to wait 7 days if they did...

[liveaboard]

Do you use a PO Box? That's the only reason I can think of that would change your shipping...

[Samurai Vaper]

No i used my home (apartments) address. That's why I'm wondering why it's showing USPS as carrier. I hate the long wait of USPS delivery to my P.O. Box...

[Samurai Vaper]

I also hope they didn't send it USPS or else it won't be delivered to my home address since my apartment does not have a mailbox and it will probably be sent back.