2015 NISSAN QUEST Service Brakes Problems

ON MARCH 26TH 2016, AT 2:31PM, I SAT IN THE VEHICLE, TURNED THE VEHICLE ON AND PUT IT IN THE DRIVE GEAR. WHILE MY FOOT WAS STILL ON THE BRAKE, THE VEHICLE STARTED TO ROLL FORWARD. I IMMEDIATELY CHECKED WHETHER THE GEAR WAS IN FACT IN THE DRIVE MODE, AND BOTH THE DASHBOARD AND GEAR BOX SYMBOLS CONFIRMED. I TRIED TO STEP ON THE BREAKS, BUT THE BREAKS SEEMED TO ALREADY BE DEPRESSED ALL THE WAY DOWN AND LOCKED IN THAT POSITION. I HAD NO CONTROL OVER BRAKING CAPABILITIES. AFTER SEEING THAT I HAD NO CONTROL OVER ITS ROLLING MOTION, I QUICKLY DEPRESSED THE EMERGENCY BRAKE. THE VEHICLE FINALLY CAME TO A COMPLETE STOP. THEN I TURNED THE VEHICLE IGNITION OFF. I WAS PROMPTED TO PUT THE VEHICLE IN PARK MODE. I SHIFTED THE GEAR TO PARK AND ATTEMPTED TO RESTART THE VEHICLE. WHILE TRYING TO RESTART IT, THE VEHICLE'S...