Sue Howard points out on alt.fan.wilson that a famous UK comedian, Scotland's Frankie Boyle, praises Robert Anton Wilson in a memoir, My Shit Life So Far.
Quoting from Page 143 of the book: "Robert Anton Wilson is a writer who wrote a bunch of great books about freeing your mind. One of his exercises is a little list of dogmas you should try to challenge yourself with. One of them is 'a cop is a cop is a cop'. It was hard to get my head around at first because as kids we were terrified of the police."
American comedian George Carlin, famous at least on this side of the pond, and RAW were mutual admirers. The proof is in Chaos and Beyond, which reprints a letter Wilson wrote to "Trajectories."