This probably means, in practical terms, to obey a police officer's request to go home unless you know you are doing something important.
I think in practice this will be a warning or civil infraction unless you make a bad impression on the cop since that is basically how every other crime where the officer had the discretion to choose between civil/criminal goes.
So basically, ignore it and use your own best judgement.
More like, generally follow it, and don't be an asshole, so that you get the benefit of the doubt when you choose to break it for a good reason.