I said the same thing during the game but
@PittMan2003 says there was another time a woman officiated a game (she's an NBA ref now and he has a shirt to show for it -- he said it was a "blackout game"). But I'm with you ... I simply cannot remember another time when a woman did a men's game. (And as you know, I always pay attention to exactly who officiates games).
I suspect it's possible that he was referring to a Women's game, but he didn't seem to indicate such. But if you and I BOTH think it's the first time we've woman official for a men's game, and knowing that you and I go to almost every single game, and how we are both "sticklers," it seems very unlikely we are BOTH wrong.
In fairness, in my post during the game, I said first ever woman ref at the Pete (while meaning just for a men's game.) So that would have been the cause for confusion. Have they even had "black out" games for the women's team?