[ZeGermanHam]

Odd. It's probably going to stick again soon, though.

Just want to reiterate what others here have stated, which is that since your car has power assist brakes, it does not use a return spring on the pedal assembly. The spring responsible for returning the pedal is inside the master cylinder. My hunch is that the piston bore in the MC is not in great shape and is not allowing it to move freely all the time.