this.
the beautiful part about libertarianism (certain brands) is that it does a good job at not being too philisophical. The problem is that libertarianism, quite differently than other political philosophies, distinguishes between the federal government, and smaller local governments. The entire perogative of the Rand Paul type libertarian is to minimize the federal government (ie. be pure and philisophical at the federal level) and let smaller governments be more "practical." The idea is that smaller more intimate governments have more direct knowledge about how to solve problems pertaining to peoples lives, and that smaller governments allow for greater direct representation of the people. I wish this point would be made more often. There is a lot of practicality in Jeffersonian libertarianism, and it's not all airy philosophy.
So, for instance, speed limit laws are in fact a limit on natural rights (you have the natural right to speed, in the anarcho-libertarian sense of natural rights, as long as you dont kill anyone), and so the federal government does not enforce speed limits. However, smaller governments are allowed to infringe on certain rights. Similar things can be done with private businesses in communities, and it would not have the side effect of a huge bloated beurocratic federal government which believes it has the power to cure everything by deficit spending.