Lots of alarm pheromone

The guy said the bees had been there only about six months, we determined that he SAW them six months ago. The comb was almost black which means years. When we opened them up they started putting out alarm pheromones and they started bumping my head and suit. We got them out but it was a difficult process. The neighbor had 4-5 backyard roosters that crowed the entire 3 hours we were there.