Sometimes it works for a little while. Like this is a great example. The person gets thrown out of court, and their problem is solved for a while. Eventually an arrest warrant will be issued, perhaps their car will be impounded if they get pulled over in the future. But that hasn't happened yet.

And there are situations where judges don't want to waste time dealing with them, especially if it's something minor like a Fix-It ticket. I've seen numerous videos where essentially the court staff realizes that their job is revenue generation, and spending hours and stays dealing with the sovereign citizens is not cost-effective.