Kate Upton disappointed male fans who hoped to meet her at Ainsworth Park Avenue Thursday night. The model was to appear at a party to debut the Mercedes-Benz Super Bowl commercial, in which she appears, for its new CLA souped-up sedan. But Upton was stuck in Uruguay on a shoot. The beauty stars with Usher in the ad, in which a guy makes a deal with the devil to live a life of luxury. The only talent from the ad at the party was Sebastian Beacon, the actor who plays the “hero.” “Sadly, I didn’t get to kiss Kate at all, but a boy can still dream,” said Beacon, who also tends bar at Diablo Royale in the West Village. Usher also gave Beacon dance lessons. “I was proud that I didn’t fall,” Beacon added.