In CO you have a choice to do what you want with the money according to the law they can't force you to repair the car... I got a check from the kid that hit the side of my Land Rover for 3900.00 (small dent just cosmetic but because the door is aluminum they have to replace and repaint) I used it to put bumpers, sliders, and a winch on it plus pay for the insurance for a bit... The way it is worded here is you have a choice of what shop it gets fixed at if at all and you have a choice of if you want a check or if they pay the shop... as you are being made whole again...
Nice job on the buffer work...
Also carfax only can be reported to if the damages to the vehicle were over a certain amount and if I am not mistaken that amount is something like 975.00...