no. You're wrong. Obviously you 've done very little research.
If you're on your way to or from something school related, your excused from curfew.
If you're on your way to or from a job, its excused from curfew.
If you're doing an errand for your parents, its excused from curfew.
If you're with someone over 18 who your parent approves of, its excused from curfew.
These aren't "court defenses", they're defenses written into the many (I've checked at least 10 in surrounding cities, all have them) laws. Its not an "excuse", really...its just if you're doing one of those things, you haven't broken the law.