Naomi Campbell phoned swanky Spago in BevHills just as they closed after lunch and said, “Hello . . . this is Naomi Campbell . . . the supermodel!” Told that it was after the 2 p.m. closing, Naomi begged them to stay open just a few minutes more! The maitre d’ agreed — but it was 45 minutes before Naomi showed up with some “gangsta” hangers-on. And what did Miss Thang order after keeping the kitchen open? ONE bowl of soup, that’s what!