Q: Accidentally brushed start/stop button and car shut down

While I was driving on the interstate, I was reaching for the navigation screen to select something and my hand accidentally lightly brushed across the engine start/stop button. My car immediately turned off. Fortunately there was not heavy traffic so I was able to get to the exit and coast to the top of the ramp. I pulled over. There had been four lanes of traffic and I literally had no control over any cars coming from behind me. I wondered if I would have to have it towed. The steering and the brakes fortunately did not lock up. I was later told I should have put the car into neutral, stepped on the brakes, and restart the car. That seems impossible to do at high speeds on the interstate. I duplicated the problem at a nearby neighborhood parking lot and it was easy to stop my car when it was in motion, but I still could not start it without stepping on the brake. Can you tell me if there is a way to put a safety cover over the start/stop button or some way more pressure can be added to the button?