This morning I was driving on a highway which had morning traffic. As in the past, when I hit traffic I put it into autopilot. The traffic became very heavy and I was stopped --- all of a sudden I see a flashing red warning on the screen indicating I should take over, so I grab the wheel and then the car went into park and my hazard lights went on - all by itself. I tried to put it in drive but it would not go into drive and I sat there parked on the highway with my flashers on. This would have been fine temporarily except the traffic started moving again. By pushing in the park button I was able to get it back into drive. I wasn't sure what caused this but subsequently about a half mile ahead there was a warning sign to switch lanes to avoid an accident that was blocking two of the three lanes.
Has anyone else come across this? Is it possible it detected the accident ahead?