And the freeway isn't the only socialist road system. Almost every road in the country is a socialist road. When was the last time you and your buddies put some cash together to build a road?
You have been making good points, but perhaps you are getting bogged down in the details. In housing developments it is pretty common for the roads to be privately constructed. And although I don't live in a development, I and the other homeowners on my block had to pay for the city to pave our street.
Alternatively you could finish crossing the bridge and let the big billy goat gruff respond to Artemis.
Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)
The apathy of the people is enough to make every statue leap from its pedestal and hasten the resurrection of the dead. William Lloyd Garrison