Duncan, Oversize permit doesn't allow the continuous use of wipers. That means that it raining or snowing too hard to be safe to drive. Visibility is reduced. Lots of silly rules but it's to keep everyone safe. I drive escort a lot and you wouldn't believe how some people react around us. The worst is when people try to beat us thru narrow bridges. We had 3 instances this summer when escort vehicle stopped cars and the car then took off and tried to beat us across the bridge. This means our driver has to hammer on the brakes, we're hauling a 30,000 load on a 30,000 lb trailer and instant flat spots or blow outs on the trailer tires. This one cost of $5000 to get back on the road, my driver pulled over to let another truck pass, shoulder gave way.
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