At most airports in the Midwest (NE, IA, SD, KS) you just start walking; don't think I've ever had more than 3 (local) cars go by without someone stopping and asking if I want a ride. Courtesy cars also abound; know where to look for hidden keys if no one is there (or call in advance). They are usually miserable beaters, but it's a ride. Always be sure to bring it back with (a lot) more gas than you left with -- it is a courtesy car, and it works both ways. The "pilot" sign is a cool idea -- I'm sure it is irresistible to many. Blessings