I would have been very annoyed in that situation too. Can't blame you a bit. I just can't bring myself to do carpooling anymore. I used to carpool with my neighbor for going to work and back home. It seemed there was always something throwing us off - my schedule or hers. As a result, I was always frustrated.
How can you prove whether at this moment we are sleeping, and all our thoughts are a dream; or whether we are awake, and talking to one another in the waking state?
-- Plato --