When parking a motorcycle on a steep hill, how should the bike be positioned and secured?

1. Angle the motorcycle with the rear wheel against the curb, and leave the transmission in first gear.
2. Park parallel to the curb, facing downhill, and leave the transmission in neutral.
3. Park parallel to the curb, facing uphill, and turn the handlebars lock-to-lock.
4. Angle the motorcycle with the front wheel against the curb, and leave the engine running.