The driver's first directive is to protect the car and its passengers, his second to protect pedestrians; he skids to a stop, throwing Acht from his seat--his brow strikes the glass and shatters it.

If Acht has concussed himself, it's light enough that he's lucid. He tells himself that he's lucid, even as blood washes down into his eye and over his lips. He flings open the door of the sedan (his collarbone has a crack that he can feel like a thread of fire when he moves his arm) and stalks out into the snow.