I covered town council meetings for the summer after my freshman year of college. I was working for a small weekly newspaper where the next youngest employee was at least 50 and most of the people were in their 70s. The owner -- who was often in the office -- literally died while I was working there.
Anyway, I don't recall any specific incident as weird as the ones in that video but they don't surprise me at all. The only people who show up to those meetings are the council members, people who have specific business before the council, unlucky journalists... and weirdos.