Hyde tells the Mounties, "I'm here to nail Margaret Trudeau", and they respond with "Been there" and "Done that". Margaret Trudeau was the wife of the 15th Prime Minister of Canada, Pierre Trudeau. When they got married, she was thirty years younger than him. Their marriage shocked Canadians because of the age difference. Initially, they seemed to be happy, but by 1978, Margaret's antics were causing concern in Canada. She was rumored to have had affairs with various politicians and dignitaries, and her alleged promiscuity had become a national joke. Since November 2015, the Trudeaus' son, Justin, has been the 23rd Prime Minister of Canada.
During the singing of "O, Canada", the three actors born and raised in Canada (Dave Thomas, Joe Flaherty, Tommy Chong) hold their hands over their hearts while the four USA-born actors do not.
Point Place is a fictional suburb of Kenosha, Wisconsin - in the southeastern corner of the state.
The guys had to drive up the entire length of WI (diagonally), then through northeastern Minnesota (alongside Lake Superior), and finally a short stretch into Ontario.
It's likely that they bought the beer in Thunder Bay, which is the first city they would have come to (if they kept to main highways, etc.). They drove 620 miles, for roughly 10 hours.
The Mounties in this episode, Dave Thomas and Joe Flaherty, worked together on the Canadian sketch comedy show, "SCTV". Dave and Joe are Canadian, as is Tommy Chong, who Dave and Joe interrogate in this episode. Joe Flaherty is NOT Canadian, he was born in Pittsburgh, Pennsylvania, USA.
Jackie has a Harrison Ford poster on her wall, behind Donna, when Jackie gets the letter from Glamour Model Agency.