On Sun, 25 Nov 2012 08:33:24 -0800 (PST), Harry K
wrote:


You are in dense fog and will wait for an exit? Not me, I will be as
far off the road as I can get (withoing reason) as soon as I can find
the edge of the highway.


There's no easy answer if you can't see where you're going, unless you
really know the road.
Plenty of interstates have steep drop-offs past the edge.
Am I driving into a river?
I'm sure that many won't leave the road for that reason.
And with drainage at the sides, you're probably looking at a tow and
maybe some repairs.
If it came to it, I'd probably go left into the median. But hell, you
can't see that either.