So I hard to hit the brakes a little harder than I wanted to tonight, and when I came to a stop the engine shut off - The radio and lights all stayed on, and the car was in gear (tiptronic), but the actual engine shut off, and the red battery light came on... I put the car into park and was able to turn it back on, and it drove fine (another 5 miles to my house maybe) - any idea why this happened? Thanks,