Gutting, but as a million people have already said - at least you walked away without injury
By the way, that warning sign means "slippery road" which could potentially apply to every inch of tarmac in the world, at any time of year. Be it ice, oil, petrol, diesel, butter...
Anyway, at least you'll be getting a new car by the sounds of things. I wouldn't want mine back if I'd binned it in a ditch
Fingers crossed that doesn't happen