Accelerator Stuck problems of the 2005 Dodge Ram 1500

While driving 2005 Dodge Ram 1500 4x4,I went to pass a slower moving vehicle,the truck went into passing gear, and the accelerator stuck all the way to the floor. I tried to lift it with my foot and only the plastic portion of the pedal came up, the truck was still going at full foot pedal. I looked at speedometer and was going over 100 + miles and hour, the only thing I could think to do was to put it in neutral, but at that rpm the motor would surely blow. I stood on the brakes, until I was slowing a bit and then put in neutral,at which time the motor was free revving at redline. I was able to stop, all the while the motor was red lining, and then shut the key off. Thank goodness the brakes held, I don't know how much longer they would have though , there was smoke rolling off the entire front end of the truck. I notified the dealer, who recommended that I call roadside assistance and have it towed in ,he gave me the number , and was sorry for this happening, and unfortunately he had no porter to come and pick me up, could I stay with the truck until tow truck arrived. I called the tow truck assistance and waited for them to arrive , the man informed me that when the key is shut off, it resets itself, he started the truck and drove it up on the flat bed. I arrived at the dealership and they are going to look at it sometime. Last week my 17 year old daughter was driving the same vehicle and had a minor incident while pulling into a parking lot, witnesses stated that the truck was going fast. Last week I like any mother thought it was her driving skills,after today , it's really made me think about her incident. And what would have happened if it was her driving? I saw my life pass by me today literally. I don't want to drive it again. What should I do. I have only had this truck 10 months!!!!!!!!!!.