He Didn’t Think Twice
One of the most regrettable aspects of the neighbor’s original behavior was the fact that he did not pause to consider how his actions would impact anybody else in the neighborhood. It was very obvious that Oliver was making use of the driveway, and as a result, closing off more than half of it was always going to be considered a defiant action.
Even though Oliver’s neighbor had not yet moved in, he was already the source of contention between Oliver and himself. A bit of civility may have avoided the need for this problem’s existence in the first place.