2011 Mercury Milan electrical system problems

While we were driving the vehicle, the blower motor for the air conditioner shut itself off then came back on and it was blowing white smoke out of all of the vents. We had to pull over to the shoulder of the road and shut off the car in order to stop the white smoke from coming through the vents. The HVAC blower control motor unit had started burning and failed to disengage the blower motor while it was burning.

Was stopped by a policeman because he said my right taillight was going crazy, blinking, acting wrong for a braking process. I had no indication that my right tail light did not work and also that my right signal light did not work. There is no indication that the blinker was not working. Prior to being stopped by the policeman, I had a driver shake their head at me when I was trying to change lanes to a right lane and she would not let me in to exit right. I did not know that the right signal was not working.