For an hour? At midnight? That’s unadulterated inconsiderate douche-baggery plain and simple. Perhaps you should have gone over there, which is what your neighbor was looking for. (Not you necessarily, but SOMEONE, fer chrissakes, even the COPS at this hour…) And when you got there, perhaps you might have stared at the bike, and then at your douchebag neighbor, and said some dumb high school shit like: “Is that your bike? That’s a COOL bike! Is that yours?”
Try it next time. I predict that your inconsiderate douchebag neighbor will run inside and masturbate real quick, then come back outside and ask WTF are you still standing there for.