Disgraced ex-Prince Andrew was treated like a “common criminal” during 11 hours in police custody — which one retired UK detective called an “extraordinary fall from grace” for the one-time favored royal. Andrew Mountbatten-Windsor was planning to spend his 66th birthday alone at home with his seven dogs Thursday when cops swooped in and arrested him on suspicion of misconduct in public office for allegedly passing secret documents to pedophile pal Jeffrey Epstein. King Charles’ younger brother