The exact words of the post to which I directly replied were "The free market competition amongst all of the different roads connecting directly to your driveway will ensure that you can always afford to leave your house." which has to do with tolls only in passing. My point is that private roads aren't always tolled. They're not always open for public traffic, either.
Public roads aren't always toll-free, either. Have you ever been on the interstate system around Chicago? Tolls. On tax-supported roads.
Delivery trucks don't cause congestion anyway. If three people in my neighborhood order packages, one truck delivering the three is fewer vehicles on the road than the three of us taking individual cars to individual stores or even to the same post office for pickup. UPS, FedEx, and USPS are like mass transit for goods. They ease congestion.
If the streets are not designed for the vehicles licensed to operate on them, that's a design issue. It's not a usage issue. Put designated package delivery parking zones where they're needed, and the problem of putting the hazard flashers on in the lane of traffic goes away.
Who paid for the road and the signage for that zone is really a different and separate matter. The socialists and libertarians should both take a moment to agree on a solution here before bitching about who grabs the check.