Folks, if you ever end up in a situation where you can't stop your car for any reason shifting into neutral is probably one of your best options. This works for both manual and automatic transmissions. (Note: For automatic transmissions, make sure to shift into neutral, not park. You most likely wouldn't be able to shift into park while the vehicle is moving anyway.) Putting the car into neutral means the engine can't send power to the wheels any more, sort of like pulling a power plug out of the wall. Once the engine stops making the wheels go friction will naturally bring the car to a halt before too long. (Unless one's going downhill, which is a whole 'nother issue. But even then, not adding more power to the situation is still a step in the right direction.)
Oh yeah. And shifting the car into neutral isn't going to flip the car. So you're safe there.