That'll show her how ped you are!

'keeper is right.

There's no reason to apologize, and sending email with jumbled thoughts containing phrases like "Coming of Age", "pubescent girls", "children's safety", and "the police" can only be used against you, and it likely would be. Don't dig yourself in any deeper. You will not gain her allegiance by telling her she is also a weirdo and "we both ... view ... laws ... with a grain of salt".

Don't initiate any contact with her for a week. Ask yourself if you really need this witch's approval. You will be able to see things more clearly after this. And if your paths do cross again, don't bring up any ped related issues and be reluctant to talk about them at all.