I also service at that loction. I have the gas pedal stuck too. Maybe it was created by them too. Anyway they also forced me to preform the throttle body clean up, which I insisted should be covered ubder sa safety recall #80, which cause a high idling rev. because throttle cable stuck.

But they say #80 had been done long time ago, and this time I have to pay.

After 4 months, the stuck gas pedal come back till now. And last time, I suspect they seriously scratched my lower front bumper on the driver side. I did not notice until 1 week later the snowing stopped and I wash my own car (below freezing).

Peter