The problem is the author did not read the signs correctly. There are definite problems to be sure, but the catastrophe he is predicting ("stock their pantries ... learn a practical skill or two") is paranoid, head-for-the-hills nonsense that seems to crop up a lot these days, not only because of the political and economic changes that have occured over the last decade, but also thanks to the Internet, which lets such views gain a much wider audience and amplification than they would have in the 20th century.
One comment about local tax revenue: There will be a correction in some states, starting with California and many municipalities. The end of state funding and a sharp reduction in property tax revenue will force layoffs, bureaucratic restructurings, and an end to the generous pension and benefit plans that many public servants now enjoy. It just can't be sustained. But he is going too far in his suggestion that it's part of some "end of days" scenario.