I originally tried to make an itemized list of their nonsense, but I ended up with 18 bullet points of bullshit that still made zero sense. It would be disrespectful to others to have them read that.
So instead of that, here's a symbolic picture of the lawsuit as a whole: them quoting my own code to me as supposedly their IP. :)
@q3k just to clarify: was the quoted code just an example to explain the concept or was it also used to fix the trains?