I never thought that desire for fiscal responsibility, constitutional rule, and limited concentration of power would be masked over with such a contrived caricature.
The "Tea Party", on the other hand, is -- as well they should be.
It started as a populist movement with some people advocating the things that you stated. And that was a noble goal. But like many "grassroots" movements, it was co-opted by powerful (read: rich) influences, and has been steered instead towards their current position: a rabid, economically-ignorant (yet politically-involved) group for which the merits of an idea are trumped by whether or not their "team" endorsed it (Democrat: bad, "Republican": good.)
I have no love for either mainstream US party, and initially I thought that the Tea Party idea might end up developing into a viable third party platform with values closer to those of classic liberal philosophy. (Note: "liberal" here is used in its original form, not as a synonym for Democrat). Sadly, they turned out nothing like that -- and the folks who currently wear the label are worthy of the scorn they get.