2015 Subaru Forester fuel system problems

I was traveling on the freeway going 65MPH, when with no warning my car's engine stop. I tough it was out of gas, but the computer was telling me I had 30 more miles of fuel. At the time of this accident there was no shoulder to park because of construction on the freeway. This unfortunate event cause 3 other cars to be involved in a car accident. Some how my car was ok, I drove the car back to my house praying that it would not happen again. My husband drove it for a little to see if it will be ok to drive.

Car was driven out of new car dealer without incident by driver with 50 plus years experience. Approximately three to four miles into trip car experienced sudden unintended acceleration after going through a traffic light. Car proceeded into wooded area and hit tree causing lower leg injuries to driver and moderate to severe damage to car. Driver was not entrapped upon emt arrival. Engine returned to normal idle speed. Driver is confident car has problem with vehicle speed control and /or engine computer.