Dick, The only thing I can think of is that FedEx has a hub here at the North Platte airport. With fewer people to deliver to, an immediate response isn't out if the question. Ahhh The Good Life!
BTW, The coffee shop/restaurant at the N.P. airport is damn good. And, a bit of trivia. The North Platte airport advertises itself as the 'First Lighted Airfield.