If there is are least a dozen cars in a bumper-to-bumper lineup/pack, in the High Speed Lane following a vehicle on Cruise Control, there will be either a:
1) Mini Van
or
2) Buick
Driven by either a Senior Citizen, or a woman.
I've noticed that as well. I can forgive the old folks more readily than the younger women, but slow drivers in the passing lane always drive me nuts.