2015 FIAT 500L Visibilitywiper Problems

I WAS DRIVING ON I-95 IN NORTH CAROLINA: 74 MPH; 94 DEGREES OUTSIDE; THERMOSTAT/AIRC ONDITIONER SET AT 70 DEGREES. ALL WINDOWS CLOSED TIGHTLY. 4 LANE, COUNTRY-TYPE HIGHWAY; SEVERAL MILES BETWEEN OVERPASSES/EXITS; NO CAR IN PROXIMITY - EITHER DIRECTION - WITHIN 100 YARDS. SUDDENLY AT NO CAUSE THE DRIVER'S SIDE, FRONT VENT WINDOW EXPLODED OUTWARD, AND THE ENTIRE WINDOW SHATTERED. NO DAMAGE WHATSOEVER TO EITHER THE EXTERIOR OR INTERIOR OF CAR. THE POSITIONING OF THE WINDOW ITSELF WOULD MAKE IT VIRTUALLY IMPOSSIBLE FOR ANYTHING TO HIT IT; EVEN IF IT WERE SOMETHING SMALL LIKE A STONE OR PEBBLE KICKING UP, THERE IS NO REASON AT ALL THE WINDOW WOULD HAVE/SHOULD HAVE SHATTERED. I TOOK THE CAR TO A FIAT DEALERSHIP IN JACKSONVILLE, FL.(MY DESTINATION, AFTER ENCASING THE DAMAGED WINDOW IN CARDBOARD AND DUCT TAPE). THE DEALERSHIP HAS BEEN VERY HELPFUL, AND FILED A WARRANTEE CLAIM WITH CHRYSLER/FIAT. FIAT HAS DENIED THAT...