http://www.aynrand.org/site/PageServer?pagename=arc_ayn_rand...
I'm a having a little trouble believing the author actually read Atlas Shrugged - in it, one of the productive characters (Ragnar, if I remember right) explicitly lists many legitimate functions of government. One of them is maintaining public roads.
The author also deliberately fails to acknowledge the difference between public goods (blizzard cleanup) and private goods (medicine and financial services).