Ours was removed when the dealer attempted to fix the sunroof. It went back OK, but I'm pretty sure they took the windscreen out too - is this the only way to remove it from the car? They also broke the four little plastic airbag logo things and got us new ones.
Or just leave the dent there. Would a small fishing hook (without a barb) or a bent pin/needle allow you to pull it back into shape?