I was going to say that if forced to pick, it'd be a random 5 star* track, or one of my upbeat favorites* like Map of the Problematique or Ray of Light.
But I'd presume that after picking up the car, I'd be driving and my wife would be a passenger, and therefore, based on our "passenger-picks" rule, it'd be a random track that my wife likes and I don't hate.
* I have all of the music on my smartphone rated.