Yesterday I was driving down Highway 17A in the right lane in Summerville SC, when some jackass in a white car decided they wanted my lane, even though I was already there. Their right rear wheel was about even with my front left wheel. They started moving over into my lane, so I honked the horn. They kept coming. I hit the brakes and they missed me by maybe six inches. I was a bit surprised that my S didn't hit the brakes before I did. The left forward ultrasonics must have sensed the car, but there was no emergency braking or attempt to avoid the collision on the part of my car. I didn't wait for my car to react; I did as I always would have in the past. I didn't even think about the car reacting to the potential accident until some time later. Shouldn't it have detected the issue and activated the AEB system?