Try driving from Boston to Washington D.C. at 55mph. It won't take forever; it will only seem that way.
This is the same control-freak mentality that pervades the precincts of wealthy urban elitist liberals, especially those who do not routinely drive anywhere. The only people who will be helped by turning a 7 1/2 hour trip into a 10-hour trip are the airlines, amphetamine manufacturers, and the State Police.