Wither the Old Dominion?

Being on the road quite a bit I see many trucks and many truck lines. I've even learned where some of the companies call home, or, at least, where their trucks are commonly plated. If the truck has SAIA painted along the side of the trailer the license plate will be Louisiana. Heartland Trucking hails from somewhere in Mississippi. Bourassa trucks are from Quebec. You get the idea.

Yet one freight line vexes me as only a student of history can be vexed, and that is Old Dominion.

Perhaps a bit of historic background would be handy.

The State of Virginia is the Old Dominion. It became known as such because during the English Civil War in the mid-1600s it had largely sided with the British monarchy. As such, King Charles (you can be certain with a name like that he was one great king) after the War called it his reliable Old Dominion. 

What confuses me, what obscures the entire issue here, is that Old Dominion freight lines are headquartered in a place called Thomasville. In North Carolina.

This angers me. I have read for years that Americans don't know their history and up pops this heinously egregious example. North Carolina isn't the Old Dominion, doggonit. Virginia is. I want to know who's responsible for this confusion. The American Student has the right to know.

History teaching in these Unites States are in shambles, I tell you what.