NEW YORK — The crazed patron who police say stabbed two workers at the Museum of Modern Art in a caught-on-camera attack after his membership was revoked was caught in Philadelphia early Tuesday after setting his motel room on fire, the NYPD said. Gary Cabana, 60, was nabbed about 1:30 a.m. — and had plenty to say when he was walked out of a Philadelphia police station in handcuffs. “Best cops in the United States right here, buddy,” Cabana said, wearing a black surgical mask, boots, jeans and a dark-colored hoodie under a flannel shirt, videos tweeted by Philadelphia Fox news reporter Steve K…