Until...
About a mile south of Moorefield, the last town before Romney, we got stopped in a traffic jam. We sat there for about 20 minutes while the traffic accumulated.
From time to time, a car would come from the other direction. Then an ambulance came. One of the cars informed everyone in line that we'd have to turn around and take another route. Police were setting up detours. Apparently it was a pretty major accident.
We took an alternate route to Romney without further incident.