1) FYI, for anybody worried, you're being told over and over to not to. UPS can get your phone from China to your local UPS center so it makes the delivery truck much quicker than you think. I've had times when the plane lands hours before the delivery trucks move out and it makes it.
2) Its plausible your phone isn't where you think it is with UPS.
3) Apple/UPS have been doing this for a decade and every year they get it done. A tincy tincy portion of people get their shipment messed up. It won't be you.
4) I've been doing this for 8 years (since the 4S). I've had plenty of "oh my goodness it won't make it" moments. Never happens.
Relax, your phone will be in your hands Friday.