bluelines:
Oh dear! Glad your friend did not get hurt.
Are you ported from Switzerland now? I would be interested to know how the authorities deal with such an accident for a foreign car and driver. I had a very similar "self-inflicted" wet-road-meets-guard-rail accident which ended in a six month trip through the finest Swiss bureaucracy with endless fines and a lost driver's license...
No problem with the authorities - we called the police - they said: no need to come, if no other car is involved - my insurance has to pay for the damaged guard rail.
I organized the pick with the help of my german automobil club ADAC - we had just 4 hours to wait.After 5 days the car was back in germany.
Blueflame