This happened to me on a few occassions with ye ol Lemon Drop. Scares the shit out of you to give it a little gas, only to find out the car continues giving it more gas after you lift your foot off the gas pedal.

Ford "fixed" the problem by putting those little plastic hooks on most of their cars. Sometimes if you don't have that thing securely pressed into the floormat, it will have a tendency to work its way forward. Unfortunately you will be at fault and in no way is this Ford's problem (unless there was some floormat recall ). Sorry to hear about your accident...at least no one was hurt.