2000 GMC C/K CHASSIS CAB Parking Brake Problems

THE DAY I RENTED THE UHAUL I HAD SEVERAL PROBLEMS, MOST BOTHERSOME WAS ONE PARTICULAR EMPLOYEE. I ACTUALLY CALLED 1800GOUHAUL THAT MORNING AND HELD FOR OVER 25 MINUTES TO VOICE MY COMPLAINT. I WAS TOLD THAT A REPRESENTATIVE WOULD CONTACT ME, YET I HAVE HEARD NOTHING. THE TRUCK (GH4718B AB96170 AZ) DROVE FINE, BUT THE CHECK ENGINE LIGHT CAME ON ABOUT 1 MILE AWAY FROM THE RENTAL CENTER. I MADE A U-TURN ON THE HIGHWAY AND WHILE DRIVING IT BACK TO UHAUL, THE EMERGENCY BRAKE SELF DEPLOYED CAUSING THE TRUCK TO JACKKNIFE, THE BRAKES TO SMOKE AND THE TRUCK TO COME TO A HALT ON A HIGHWAY. I WAS VERY SHAKEN AND AMAZED THAT I MANAGED TO AVOID THE CONCRETE BARRICADES (ROAD CONSTRUCTION) AND ALL OTHER VEHICLES ON THE HIGHWAY. WHEN I RETURNED WITH THE TRUCK, AN EMPLOYEE NAMED KENYATTA MELLIEX BEGAN A LONG SERIES OF UNPROFESSIONAL AND UNSAFE BANTER....