If he's under 18, good luck. They wouldn't let me bring my brother-in-law to shoot who's 13. They said parent or guardian had to be present.
He is 15 and I brought his mom along to sign him in. They said she had to stay and couldn't just sign him in and leave, so we went back later after her appointments. I convinced her to shoot as well and they had a great time. She's a single mom and lives in NY. She's fairly liberal but grew up in La and isn't afraid of guns.
BTW they did open at 10am