 As San Diego's CBS 8 TV reports, an argument broke out between a California Highway Patrol officer and a firefighter from Chula Vista as they clashed over where the Chula Vista crew's fire engine should be stationed. Firefighters had placed their vehicles along the center of the road, close to where a car had flipped over and behind an ambulance. Emergency personnel tended to the car's two occupants as the conflict went on around them.