Option 1: Lift, Lock, and Go (hanging stabilizes your bike preventing it from rolling and falling over)
1. Lift rear tire of bike off the ground
2. Slide your seat over the pipe(front or back of saddle will work depending on seat manufacture) 
3. Set seat on pipe
4. Lock bike to post

Option 2: Stop, Lock, and Go (too tired to lift your rear tire? )
1. Park bike next to post
2. Lock Bike
3. Go have some fun!

Eliminate the roll! 
Utilize the hang, lock, and go system to stabilize your bike while you lock it to the Pedal Post