I actually had a pretty long discussion about this with a couple of other people who have read the novel, and I think half the characters would annoy me and the other half would make me anxious by being TOO accommodating and uncomplaining.

My joke nomination is for For comments: Highlight for spoilers! *the sole non-cybernetically-enhanced human in the story who has also trained herself in the art of poison so that she can literally kill you with a touch. She would either respect your boundaries on the road trip, or she would not. In the latter case, it would be a very short trip*