Meh, would depend entirely on the tip they left the Uber driver before I'm willing to call him scummy.
End of day, they are public figures. People care what they say much more than if I were to crap on my boss. If you don't want what you said to be public, don't say it in front of random strangers. Especially in a one party consent State like Arizona where this was perfectly legal. Especially if you see a camera in front of you.
Same situation with Nenshi, except that was a two party state.