I posted this somewhere else too, but here is a reminder. You only have to go 81 in the 70 zone to get charged with reckless driving which is a class 1 misdemeanor criminal offense. In excess of 80 regardless of the speed limit law is still on the books in Virginia.
http://leg1.state.va.us/000/cod/46.2-862.HTM
46.2-862. Exceeding speed limit. A person shall be guilty of reckless driving who drives a motor vehicle on the highways in the Commonwealth (i) at a speed of twenty miles per hour or more in excess of the applicable maximum speed limit
or (ii) in excess of eighty miles per hour regardless of the applicable maximum speed limit.
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