My whole school thinks my dads a pedophile because of a misunderstanding and I get made fun of because of it is this right?

My dad got In trouble because he asked out what he was told was 14 year old girl on some dating app, and he wanted to pick her up and take her to get coffee, her dad called the cops and now he’s under investigation, he did nothing wrong, it’s not illegal to take someone out for coffee. He could go to jail for doing nothing wrong, it’s not like he asked her for sex. Yet I get made fun of cause my dads being persecuted, this could affect me big time. How do I stop this