It is a wheel weight. They must have used it to shim the the pedal/clutch switch contact point. Obviously they thought that was easier than adjusting the switch properly.
It is hidden in the climate control functions. So you have to go into the climate menu and then fumble around for it. Every other car I have been in has a button on the steering wheel somewhere.
I don't nor can I seem to find. They were the ones I bought directly from the Ford dealer when I bought the car...The bags were branded Ford, so they weren't an aftermarket variant.