You know where you couldn’t smoke? The MetroDome (old Twins and Vikings stadium). “No smoking! No smoking in the MetroDome.” was announced before every game.
No it was just around the time that no smoking was becoming a thing. It was actually really annoying when the allowed smoking. Once they stopped allowing smoking in the Dome, the stadium announcer would declare “No smoking. No smoking in the MetroDome.” and it got a huge applause every time.
Although I was at a game when the roof ripped and the lights started bouncing kind of like the Tacoma Narrows Bridge. But they cranked up the air pressure which compensated for the rip.