2008 BMW 328 Structurebody Problems

MY FAMILY AND I LEFT FOR VACATION IN THE MIDDLE OF THE NIGHT AND WERE DRIVING ON THE INTERSTATE FROM FLORIDA TO VIRGINIA. THERE WERE NO OTHER CARS AROUND SINCE IT WAS SO LATE. WE WERE DRIVING AT ROUGHLY 78 MPH. WE HAD THE SUNROOF ANGLED OPEN. SUDDENLY, WE HEARD AN EXPLOSION, WHICH SOUNDED LIKE A GUNSHOT, AND WE WERE ALL COVERED IN BITS OF GLASS. THE SOUND WAS SO SUDDEN AND LOUD THAT I NEARLY RAN OFF THE ROAD. WE REALIZED THE SOURCE OF THE FALLING GLASS WAS FROM OUR SUNROOF, WHICH NOW LOOKED LIKE A DOME. SOMETHING CAUSED IT TO WARP IN AN OUTWARD POSITION. TINY PIECES OF GLASS WERE FALLING ON US LIKE SNOW. WE PULLED OFF AT A TRUCK STOP AND VACUUMED OUT THE GLASS INSIDE THE CAR. THEN, AS WE SHUT THE CAR DOOR, THE LEFT SIDE OF THE SUNROOF COLLAPSED, CREATING A GAPING HOLE....