Sounds familiar.. Though I just found out that the Naked Gun movies were based on a TV show called Police Squad! also starring Leslie Nielsen as Frank Drebbin. Just watched the first 3 episodes, and it's just as ridiculous!
Frank: Did the lab analyse the ransom note yet?
Chief: Yeah, they want 1 million dollars.
Frank: Why would the lab want a million bucks??
Chief: The kidnappers, Frank, the kidnappers.