I am afraid that you situation is so unique that I will not have case law. I applaud you for originality, though.
Your argument should be based upon the First Amendment to the Constitution
--Freedom of Speech
. You did not contact her either directly, or indirectly.
She's ticked off (I can just imagine the photo) and she has someone on her side at probation
. Thus the write-up.
If the write-up for the violation is no big deal--if it isn't going to violate you--then you may not want to bother doing anything.
On the other hand, if probation is going to make a stink, you need an attorney to argue your constitutional right to post anything you want to, on your internet space. If Jennifer doesn't want to be offended, then she needn't look at your site. You have a perfectly valid defense if there is going to be a court involved. However, you and I both know that probation officers are not the court--they can exert greater "pain" in some respects.
You have a winning case in terms of fighting the write-up, if you want to push it.
I wish you the best.
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