A Quiznos in Brentwood was packed with paparazzi after Britney Spears stopped in -- to use the ladies room.
Looking dazed as she exited the bathroom -- wearing boots (hooray for shoes, ya'll!) -- Spears was met by a flurry of photogs 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 Britney 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.