Actually... I don't even know that there are any official signs
that "name" it that anyway. I'm sure it's mostly the numbered shields and occaisonally the "memorial" or political names. (And if memory serves (and it doesn't always), numerous interchanges are dedicated to some people)
If WV want tolls, they should put a toll barrier on their portion.
That would seem extremely wasteful and redundant. Given that the only exits in WV are at the terminus, if it's decided that there should be some tolling reimbursement, something like this is more efficient than throwing up a separate collection system for 4 miles of road.