Transmission Not Go Into Gear problems of the 2014 Mercedes Benz CLA250

While traveling with my wife and newborn on highway 64 my 2014 cla mb cut off( while in motion ) and gave a code 'do not shift gears 'visit dealer. Somehow the car switch to netural while I coast the car to a safe edge of the road. We were terrified!! next it gave a transmission code in red to do not shift visit dealer. I'm not sure if any recalls but this is a safety that needs attention!!.

I was driving on a main road when suddenly the car shuts off completely. I could not get it to start, nor put it on neutral gear, to at least push it away. A message in red pops up on the screen that says "service required, do not shift gears, visit dealer". I could not push the car at all, because the gear shifted automatically to parking and it won't move to neutral. I was stuck on the main road for 15 minutes. I was lucky not to get hit or run over by the incoming traffic. I caused a panic on the street because I was blocking it. Fortunately, a police car showed up, and the officer helped me by diverting the traffic away from me. I had the car checked two months prior to this incident at the dealer, and they told me that there is nothing wrong with the car, and that they have updated its software to the latest version. I had the car towed back to mercedes-benz now, and will wait the results.