I would try to call if you can if its a long drive for you. It seems some offices allow it and some don't. We went for my husbands biometric appointment in New Orleans on Monday 4/24/23. We were and hr early and there was a check-in desk before he could even get on the elevator and go to the correct floor. They asked for his letter and they turned him away and told him to come back 15 min before his appointment. It only took him about 15-20 min to complete the process though once he was in. Hopefully your office is better! ❤️