Uber is expanding in Arizona and now offers Uber in Yuma. Uber is starting off by only offering UberX.
Get the app and sign up using promo code UPN1T (promo code valid in any city in the US). The code will give you $20 credit for your first ride. Going out with a friend? Have them sign up with the same code and get a round trip. $20 covers most rides around town making them free.
So go out for drinks, watch the game, go to a friends house or that party and stay safe and worry free when Uber is at the wheel.