What a pain in the neck. As others have said, at least nobody got hurt, and the other driver was insured, but it is a real bore nonetheless.
I had a similar incident when a moron in a Seat backed into me in my 4/4. The damage was also much more complex than met the eye, but it was all sorted out in the end. What looked at first glance like a bent front wing (he had the nerve to say it was nothing) ended up costing his insurer nearly ten grand.