Here's jail, and here's something else with less jail time or non - Choose. Parents already do that to their kids, some schools to students. His innovation is in applying it to Law.
Without choice, his method would be considered abuse of power.
Now, these offenses seem to be of mild nature, but who is to say that a world where equally ludicrous punishments for serious offenses is impossible?
Creative, or even corporal (e.g. 20 lashes), punishments are A. more effective, and B. less cruel, than prison time.