I was in my driveway, I placed the vehicle in reverse backed out normally, when I put it into Drive I let go of the brakes, I did not press the accelerator pedal, and the truck instantly accelerated while in electric mode. The acceleration was so quick that I slammed the brakes and the tires gripped the ground but I could not stop it in time and I hit a cement pylon. That same day, later in the evening I noticed that my transmission temperature was reading cold even though i had been driving for over 40 minutes. The following day, in the morning I started the truck, put it in drive and it felt like the accelerator pedal would not work, after a couple seconds of me pressing on it to see if it would catch I felt propulsion from the truck and the accelerator was working again. I am scared to continue driving this truck because its a risk to my family and my safety. I attempted to contact Ford corporate and they want me to make a claim with my insurance, then take it to a dealer so they can "inspect it" Please help