Ouch. What a mess! FWIW, I think that your actions were exactly right, all along. I don't know whether you explicitly mentioned to your boss what you've shared here about checking with the clinicians before teaching specific literature -- and omitting some based on their recommendations. If not, I hope you will - that deserves to be acknowledged.

I don't know whether it would be appropriate or not - let alone likely to be a deterrent against such behavior from her and/or other students in the future - to charge Mary Jane with a misdemeanor, re the false alarm. It's something I think deserves to be considered, though. You're absolutely right that SHE and only she is responsible for her behavior, and too many kids don't learn that (bad) choices have (unpleasant) consequences. Sigh...

Last but far from least: *hugs*