It was a family business started in the late 30s. It burned down in 1962. Apparently today the Chic-n-Coop exists in Ontario but i have never heard of any in my city during my lifetime.
What strikes me the most about the research i did on this place is the place mat they used back in the day. It's a simple piece of paper that is decorated with humor yet also portrays the reality of that era as well as its patriotic meaning.

Its lateral perimeter contains funny artwork of hillbillies accompanied by chickens, cows and a dog while the interior scene depicts a totally different scenario.
It exhibits Hitler chained up with his two henchmen portrayed with chicken bodies being tried by a jury of chickens and a judge who is depicted as the entire world (note, his head resembles the globe). The fictional outcome is clearly indicated below, "Guilty! -Sentenced to fry!
Therefore we can conclude that the head chef who is following with a frying pan from behind Hitler and his henchmen, is in fact their executioner. The surrounding slogan is also suggestive that war is imminent:
"All folks who are hungry, for miles will troop to get the best"
You had to ask.