The entire system of police does not work if you are allowed to just not do what the police tell you to because you think it is stupid. You can do that democratically, but not individually. Just like companies allow you to tell your boss they are being stupid, but not to stand up and say so at the employee meeting. The authority hierarchy is more important than the actual issue.

I should say that purposely getting arrested on video to highlight the stupidity of the sandwich thing is a good tactic for getting it changed. I support the guy's actions if that was his intent.