No. Although curfew laws vary according to which state and city you are in, most curfew laws only apply to kids under 18 years of age who are not in a specific location. For instance, walking down a street.

Also, most curfew laws make it legal for a kid to be out after curfew with written permission from their parents stating exactly where and for what the kids is heading. It's a good idea to have a note from your parents anytime you might be out after curfew.