2020 Tesla Model 3 forward collision avoidance problems

I bought a tesla model 3 on 9/19/20. On 9/23/20 I was waiting in my car in a line of cars at a fast food delivery window, stopped 8-10 ft behind a large vehicle with my foot on the brake as well as in the park mode because of the slow service ahead. After a while I realized that my tesla had started moving slowly towards the vehicle in front. Pumping the brake, trying to change the gear to reverse did not stop the car. The screen data disappeared and a message flashed saying that all safety features were off.

From the moment I drove my brand new tesla off the lot - the screen - the only way to control anything about the vehicle - would freeze; black out; and take several minutes to reset itself. While in this completely inoperative state: the audio system would emit a high pitch noise; any ability to tell speed; turning signal status; anything was completely impaired; the climate control blasts on high fan a torrent of cold air.