A Quiznos in Brentwood was packed with paparazzi after a dark-haired Britney Spears stopped in - to use the ladies room. Looking dazed as she exited the bathroom - wearing boots - Spears was met by a flurry of photos who tore the sub shop apart, pushing tables and chairs around to get a good shot of Brit. Escorted through the madness by holding the hand of a photographer, an ever-observant Spears was heard saying, "You're filming me as we walk." She then hopped into her car, where her kids were sleeping in the back seat, and took off.source