I would start on the web if you can. I was able to scan in my documents ahead of time and be all ready when I arrived onsite.
Make sure u have all the documents needed for a real id.
You don't need a appointment to get a real ID. Actually, I found that walk-ins are seen just a quick as people that actually have appointments.
Call DMV and tell them what you need and they will make an appointment for you when you get there let the security guard know you have an appointment
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