Daughter got her first write up at school

My daughter got a write up right before fall break. She has never gotten one before and I am going to talk to the teacher Monday so I can get both sides of the story. My daughter was written up for cussing at him. Her side of the story is he pulled her aside to talk about her Instagram. My girl is in competitive cheer. She had a competition and was posting pictures on Instagram. He said he ran across her Instagram and asked if her parents approved of her posting in short skirts like that. She told me that she told him she's a cheerleader. And he said she still shouldn't be posting that and does her parents know she does her church know. We don't even go to church. What she told me she said was "Idk. Does the school know that you as a grown ass man are stalking 16 year old girls Instagrams?" If what she is saying that happened is correct then I don't think she did anything wrong. Listen I raise my kids to respect teachers and adults but also to respect themselves. And especially my daughter's if someone is making you uncomfortable and being a creep you do not have to respect them. If he actually was on my underage daughter's Instagram looking at her in her cheer uniform that he found so inappropriate, he's a fucking creep and no she does not have to respect him. I'm going to get his side but I am not signing any write up until I get to the bottom of what happened. I see him tomorrow so wish me luck ladies.