Why is it always about freedom of speech?
So when the authoritarians come to power, you can scream "freedom of speech" all you want - no one will care.
It's a brilliant tactic. It worked in the other direction with "fake news".
Used to mean "actual made up news, usually from Russian proxy 'news' sites". Now the term is completely void of meaning.
Telsa is acting in bad faith towards customers, the government and investors here.
This sounds more like PR than like a real legal argument. And maybe that's exactly what's going on. Maybe they're trying to look good in public even if they lose the case.
Lawyers with no good arguments throw everything at the wall.