With some proviso....
They have had a failure within that motor and it can only get worse. IDD, as with all motors onboard, is considered a consumable that will, at some point, give up for good.
They wont be 'parking' the arm in the usual place when not being used, as that would require more use of this particular motor, but instead will probably park it in a way similar to having the palm of your hand on top of your head, on the rover deck, not sure of the specifics, but the magnets at the base of the Pancam mast would seem a sensible place to leave it resting.
Doug