Whoa! That's scary man. Sorry it happened, but glad it happened in the parking lot and not on the road like you mentioned. I doubt that company will pay for any damaged caused to the car, but they should at least replace/refund the k-member assembly.
Good idea to take pics of what happened.
-------------------------------
'79 Mustang Coup w/ 4" Cowl
Stock 5.8L, C4 w/ shift kit
Holley 750 CFM, Edelbrock Performer RPM intake
1 5/8" MAC shorty headers, Al driveshaft
2.5" Off road H-pipe, 2-chamber Flowmasters
Front: 225/60/15 Rear: 255/60/15 Eagle GT II
Weld wheels (15x6;15x8), 8.8" Rear end w/ 3.55 gears
14 x 4” K&N air filter (getting the Xtreme setup soon)
"Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body