Sounds like something along those lines, for sure. I'd be interested in a followup on this. Libs do this sort of thing, also. If you ever watch Washington Journal on cspan (i know, i know, most freepers don't) you'll notice libs pretending to be conservatives calling in on the Republican line saying stupid, exaggerated things they believe conservatives stand for. Whats funny to me is they seem to believe conservative listeners can't tell the difference.
I'm familiar with the program. I think C-Span continues these call-ins for laughs.