2006 LEXUS ES300 Electronic Stability Control Esc Problems

ON 12/23/09 AT APPROXIMATELY 1:46PM, MY MOTHER LOST CONTROL OF HER 2006 LEXUS ES300 IN THE PARKING LOT OF A STORE IN MIAMI, FL. THE CAR WENT UP ON A RAISED GRASS BED AND WAS STOPPED ONLY BECAUSE IT WAS CAUGHT BETWEEN THE ARMS OF A LARGE, METAL GATE. THE GATE REMOVED THE ENTIRE HOOD OF THE CAR AND SHATTERED THE WINDSHIELD. MIRACULOUSLY, MY MOTHER WAS NOT HURT AND NO OTHER CARS OR PERSONS WERE INVOLVED IN THE INCIDENT. MY MOTHER WAS TICKETED FOR "CARELESS" DRIVING, LOSS OF CONTROL. FROM THE MOMENT I ARRIVED ON THE SCENE, SHE DESCRIBED A FEELING OF NOT BEING IN CONTROL OF HER CAR - SHE SAID THAT IT WAS AS IF THE CAR WAS GOING WITHOUT HER! WE HAVE REPEATEDLY CHECKED WITH LEXUS, AND HAVE BEEN TOLD THAT THE ACCELERATOR PEDAL FOR HER MAKE, MODEL, YEAR IS NOT ONE OF THE ONES EFFECTED BY...