It’s official — Levi Johnston is a first-class idiot. He was spotted Tuesday at JFK wearing sunglasses and refusing to stand on line with the “regular” passengers, including “Seinfeld” star Jason Alexander. A spy on his American Airlines flight told Page Six: “He then made a big show of getting on first. He was seated in the front row of first class, looking like he was born to be there and waiting for some recognition. Jason Alexander was quietly sitting behind him.” We wish Levi would just zip it up and head back to the Alaskan oil fields.