I would have ziptied it too but I couldn't find a rubber thick enough and I don't have a lift to get under the car. Plus my driveway is on an angle so didn't want to risk it.
That's ok, other then tires it is the only thing I have had to do to the car.
PLUS, if this fails in a year or 2 (now that I know what to listen for) I am going to put up a stink about it !