It's gotta suck when a planned photo-op doesn't go as planned. In addition to having a planned gas-station stop (to highlight her gas price relief plan) get completely unveiled, Hillary Clinton also had a run in with a coffee dispenser she didn't know how to operate.
It's difficult to assign much meaning to it. I've been flummoxed by an unfamiliar doo-hicky here and there. . .a gas pump that is different than you're used to, or a coffee pot you have to pump or something. Still it's kind of funny, and the musical track is great.