What does the man in Sylder's car want and what does Sylder end up doing?

The man explains that he is sick and begs for a ride back to Maryville, where he surmised Sylder was from given his license plates. Sylder says no and demands the man to get out of his car, but the man instead just slides over into the passenger seat as if he misunderstood Sylder. Too tired to pursue the point--and too disturbed by something about the man's appearance--Sylder decides to let him ride along. Though he had no intention of going back to Maryville, at least not yet, he decides that it is as good as anywhere else. He finds himself quickly annoyed with the man, who is stubbornly talkative.