Dark nights and idiots on the road

[forbefor]

Driving home in the dark tonight through the back lanes some idiot driving to fast round a corner came on to my side of the road making me swerve in to hedges and hit side mirror on tree branches,this is now left my side mirror hanging off it is wobbly but still attached.
Can someone please tell me can I easy fix it or will I have to ask Father Christmas (hubby) for a new one.And no I did not get his reg he just carried on at some stupid speed ignorant of what he had done.