Update: looks like the deal’s dead. Sorry folks. It lasted a couple hours.
There’s no way of knowing how long this is going to last, but DCTA found an Uber promo code worth $25. Although it says it’s for Rogers (a Canadian mobile phone company), the promo code appears to work regardless, and works on both new accounts and existing accounts.
Just go into the Uber app, hit the menu on the upper-right side, it promotions and type in “roamwithuber” – a screen will them tell you it’s been applied.
Worked for me – did it work for you?
BTW – if you don’t have an Uber account already, also use promo code ubercarpepoints, and you’ll get even more credit on top of that.