that's answer enough. If it was a first-responder situation, and they had to intubate you on the scene outside of a hospital, that means it was a very serious situation, where if they did NOT intubate you, you might have died. They don't just intubate you for the heck of it.

It's too bad your vocal cords were damaged, but not knowing the situation, it sounds like you ARE lucky to be alive, and if you are unable to speak clearly, at least you are alive to type.

Why, again, do you want to sue the person that saved your life?