My buddy had a bus stop sign jump out at him. Of course that was at 60 MPH in a 35, after another buddy had just gotten off the phone with him saying you could see the rear end on his car stepping out because it was raining. The asphalt on the road was mixed wrong, and someone died about 20 feet from where he hit the sign.
So, 3 full spins, a stop sign, bouncing off palm trees, not even stalling his car (stick), and $3300 he is back on the road.
So, your little incident is nothing to have your pride hurt over. Just tell everyone the girlfriend was driving.
As for me in the 914, I am always very cautious in the rain. I was racing a T-rex (
link) and had one tire hit the wet asphalt from the sprinklers at 70 MPH. Scared the shit out of me, and since then I am a lot more cautious with water. The important thing was that I did stay even with him, although I was behind him so not sure if he had more to give it or not. He had his girlfriend with him, and when I pulled up next to him he would not run me again, so I am assuming he didn't want his pride hurt, although I really have no idea.
When I am on the highway, I tend to go just a little fast than anyone else, so there is not much time for me to be in people's blind spots.