the main UPS hub called Worldport is located in Louisville, which is why they're going there even if you're on the West Coast.
http://en.wikipedia.org/wiki/Worldport_(UPS_air_hub)
Kentucky is a pretty central location, so they send them all there and then distribute on all the local flights. They will probably leave Kentucky early tomorrow, get to your local main distribution center by late in the day, and then be out for delivery Friday
Thats terrible news!! I was hoping for a delivery tomorrow!