While cruising on the web, I came across a picture of a Crown Vic that suffered a similar fate as mine. But I guess the rear brake calipers were not as strong as they think because obviously the axle and rear disk brake is gone.
Granted, this is a P71 while I have a M75. But the outcome could be the same for the other owners of this model car. That includes all civilian and non-fleet Crown Victorias, Grand Marquis and Town Cars.