Check, please. Notorious dine-and-dash diva Pei Chung was hauled off on a gurney Tuesday night after returning to her luxury Williamsburg waterfront apartment, only to discover she was still locked out. Photos obtained by The Post show Chung, 34, strapped to a stretcher inside an ambulance outside the building, capping another chaotic chapter for the Taiwanese national who made headlines for allegedly skipping out on tabs at nearly a dozen high-end restaurants in Brooklyn. The Prada-loving faux