Wouldn't think of it myself. I've encountered drivers backing up on
the highway, too, into oncoming traffic.
One problem with a true whiteout is a question of where do you stop if
you have to? I remember hearing of a woman who had stopped and gotten
out of her car during a whiteout in the Champaign-Urbana area. She
was subsequently hit and killed by a truck. If a driver of a vehicle
can't tell where he or she is driving during a whiteout, should a
driver stop the vehicle?
People don't think in that situation - you can always tell where you
are on the road in some fashion - you may not know exactly where you
are in terms of towns and what not, but you can tell where you are on
the road - just have to keep an eye on the right side of the vehicle.