2008 LEXUS RX350 Wheels Problems

I WAS DRIVING ON A ROAD, MY VEHICLE BEGAN TO SHAKE UNTIL EVENTUALLY DROPPING TO THE ROAD AND DRAGGING UNTIL I COULD GAIN CONTROL OF IT , BY APPLYING THE BRAKES. I NOTICED OUT OF MY DRIVER'S SIDE WINDOW ACROSS THE ROAD WAS MY TIRE ROLLING AT A RAPID SPEED. I CALLED 911 TO RECEIVE ASSISTANCE TO STOP THE TRAFFIC AND TO HELP WITH MY DISABLED VEHICLE. OFFICERS ASSISTED WITH HELPING MYSELF, MY MOTHER AND MY TWO TODDLERS OUT OF THE VEHICLE AND TO RETRIEVE MY TIRE. THE TIRE HAD FALLEN OFF OF MY VEHICLE, AT THE RIM, LEAVING THE BOLTS AND THE MIDDLE PORTION OF THE RIM STILL ATTACHED TO THE VEHICLE, WHILE THE REMAINING MAJORITY OF THE RIM WAS STILL ATTACHED TO MY TIRE ROLLING DOWN THE ROAD. THE VEHICLE WAS IN PROPER WORKING CONDITION PRIOR TO THIS INCIDENT. I DID NOT HIT A POTHOLE NOR WAS I...

I NOTICED THAT MY INFLATE TIRE LIGHT WAS ON. WHEN I LOOKED UNDER MY CAR TO INFLATE THE SPARE I NOTICED THAT THE SPARE WAS GONE AND THE CABLE HAD SNAPPED DUE TO RUSTING. THIS IS AN OBVIOUS DEFECT AND IS SURELY A SAFETY HAZARD IF THE TIRE WERE TO FALL OFF WHILE DRIVING. 2008 LEUS RX 350 AWD.