I take it it wasn’t you who ratted the janitor out, so who did?
Meanwhile I had consulted a lawyer who advised me to resign from this insane asylum. I did so and gave them a letter that said I intended to take further legal action if they in any way let this ridiculous incident affect my future employment. I worked at one other public school after that before I decided that I couldn't be part of such a system anymore. Now I teach for private online academies.