My boyfriend an u left a bowling alley Friday night. We got into a fight and pulled into a parking lot literally less then 5 minutes away from the bowling alley. We got out of the car. The engine was off. Keys in pocket and doors shut no one else was in the car. The cops arrived because of us fighting. The witness statement says they didn't see anyone driving just two people fighting. Despite our arguments we were contemplating whether to call a cab or friend to bring us home. When the cops showed up they arrested us both with DUI. What can we do.