2002 Isuzu Rodeo brakes problems

I pulled into a handicap parking spot in front of a supermarket, put it in park, set the emergency brake. Got out out vehicle, locked the doors. Started to walk away and a guy that was sitting at a table in front of store yelled there goes your car. I ran beside the car to try to open the door to no avail. The car crashed backwards into another vehicle. The police were called and was told by them to call insurance company and to leave if both vehicles were okay to drive.

Tl*the contact owns a 2002 isuzu rodeo. The contact experienced failure with the ABS. The vehicle would slide 5-10 feet, mainly in inclement weather conditions. The failure occurred while driving between 10-50 MPH. The vehicle was repaired in june of 2007. The contact took the vehicle to three different places before the cause of failure was determined. The dealer stated that the ABS sensor was causing the failure; however, the failure recurred after the repair was made.