what happens to montag as he walks on the empty boulevard

As he walks across the boulevard, a speeding car trains its headlights on him. Thinking it is a police car, Montag begins to run, dropping a book in the process. Just as the car catches up to him, he falls to the ground and it veers away, running over the tip of his finger. In fact, it wasn't the police at all, but a group of kids that go speeding off into the night. They thought aiming for Montag was entertainment, and only avoided driving over him because it would have caused the car to flip over. Had he not fallen, the car would most likely have crashed right into him.