Doonesbury by Garry Trudeau for June 29, 1974
Transcript:
Driver: Wonder how the reunion's going... Cop: Yeah... Driver: My guess is that it's a bit tense - you know, trying to be civil when they've all been testifying against each other... Cop: Yeah, that's true. It must be pretty grim up there... Voices: We're Richard Nixon's seeeecret tapes club band!!
When I first read this, it was definitely a laugh-out-loud.