Cruise Control problems of the 2006 Mazda MAZDA3

I am glad to be alive and telling this horrific story. I was traveling alone in my 2006 Mazda3 on I-95 to lumberton on June 27, 2009 to meet my sister and pick up my mom who had been staying with her while I was out of town for the week. I had my cruise control on about 63 mph and had been traveling behind a tractor trailer truck for approx. Two miles before I reached my exit. I pulled over into the exit lane and hit my brakes and nothing happened! I hit them again and nothing. I hit my on/off cruise control switch and the deceleration switches and nothing happened. I put both feet on the brake and hit my horn and entered a five lane intersection at the end of an uphill exit ramp on a red light doing in excess of 60 mph!!! I knew I was going to die or be physically injured and didn't know who I would take with me as I had no way to slow or stop the car. Looking back, I know I had no more than 10 or 12 seconds to react before I was at the top of the exit ramp going that fast. I turned to the right as I entered the intersection to avoid cars that were entering and I think my car spun around and I was hit by a pickup truck in the inner lane who probably had no idea where I came from. I then went head-on into another car traveling in the opposite direction. My car was totaled, the one I hit head-on was totaled but the pickup truck was able to drive away from the accident. All of us were able to walk away - me very shakily. I had seatbelt bruises and air bag burns and all of my muscles were sore, but I am getting better each day. I still have pain and tightness in my chest area, but from what I am learning about this type of injury it may stay with me for several weeks. Nothing broken and nothing so far that I can't live with. Needless to say my nerves are shattered. Something needs to be done. This does not need to happen to others!!!.

On two different occasions I was using the cursie control when all of a sudden the car just took off and the speed just kept climing until I turned the curise control off. The first time this happened was in may 2007. The second time was on June,2007.