Ready to Rumbulllll

I got a call about bees in an outside couch. I got there and needed to cut the back open a bit so I could see what was going on. As soon as I started cutting the material, they started coming out ready to rumble!The people said that the bees had been there only a few days, however, there was comb that was tan to brown so there must have been bees there before. Or they could have been there for awhile and the people didn’t notice. They filled 5 frames of brood, that queen was working!