So there are two things at issue here.
First if she didn’t want to wear the mask then so be it, unless it was a condition of admission into the game, which she wore to gain admission to the game, but then took off. But when asked to leave she probably just should have left. Or certainly she should have when the officer showed up. And she sure as hell shouldn’t be trying to resist. You can trespass on public property. If you are at a school event requiring a ticket to attend, and you do not have permission to attend the event but are there anyway, you are trespassing, just like you would be if you decided to play a "free" round of golf at a municipal golf course. I do have a question about trespassing on public property though. I don’t know the answer but it seems to me if we all pay taxes we all own these schools. Unless it was private.
Second is the fact that we have not turned into a police state where not wearing a mask has become a crime. This is shameful when people believe they are above the law and do not obey repeated warnings from the police and then resist arrest. This applies to people of all backgrounds, races, and socioeconomic status. While I don’t dispute the general idea that mMasks are helpful[.] Just a like a grocery store chain may set criteria for admission to its stores, so can a school district set criteria for admission to school events. It is amazing how people turn simple requirements into a huge ordeal when they should just follow the rules like everyone else. being compelled to wear one under the threat of prosecution seems like a big stretch to me. If it’s, say, a private grocery store where the owner insists on it as a criteria to enter I’m fine with that but to turn this simple thing into this huge ordeal at this game seems like we’ve jumped the shark.