WAS FOLLOWING 2 CAR LENGTHS BEHIND A TRUCK WHEN A DRIVER FROM THE ONCOMING SIDE OF TRAFFIC FELL ASLEEP AND ROLLED INTO MEDIAN THREATENING TO CONTINUE ROLLING ONTO OUR SIDE OF THE ROAD. TRUCK AHEAD OF ME SLAMMED ON BRAKES AND IN TURN I SLAMMED ON BRAKES AND RAN INTO THE BACK OF THE TRUCK AHEAD OF ME. ABS BRAKES DID NOT PUMP AND WORK AS THEY SHOULD HAVE. CAR WRITTEN UP AS TOTALED BY GEICO.