If the person in the cab really is the woman from the train then like ajp said I could just see her being one of the first "converts" to the cause for obvious reasons.
And didn't the clown drive by when he was out on the sidewalk with his pretend girlfriend? Since the flashback later revealed that he really was on the sidewalk and only the girlfriend was missing I take that as meaning that everything but her was real in that moment, including the clown.
And didn't the clown drive by when he was out on the sidewalk with his pretend girlfriend? Since the flashback later revealed that he really was on the sidewalk and only the girlfriend was missing I take that as meaning that everything but her was real in that moment, including the clown.