Gas Pedal Problem

We have been driving this motor home since 2003 and never imagined anything like this happening. This particular Fleetwood model has the motor sitting inside between the driver and passenger seats. I don't know to much about the mechanics of this RV but just looking at the gas pedal I can see it is way to close to the fiberglass firewall next to it. The mechanic that came the next day used a crow bar to clear a space in between and he also took a corner of the pedal off so this never happens again. It was a very frightening situation but I thank God there were no other cars on the road at all that day and also that my husband did not panic and calmly did what he could to get the vehicle stopped. We have a braking system on the tow vehicle and I think that helped as well.