Once you accept the terms, you can let the Ship's AI hack into the AI of the limousine and preemptively exit the stage. Or don't. Likely doesn't make a huge difference, because *spoiler*. I agreed to the hacking btw.
I'm sorry you encountered game breaking bugs. I also encountered one but since I save much too often I just reloaded the previous save. In my case it was a softlock... Honestly, I'm not even surprised there are this many bugs considering how complex the game is with all it's choices.