This is my experience, I also knew SK do every other Friday Oath Ceremony. They do it in the parking lot, so you arrived, they guide you through one of the lines… always inside the car, someone approaches to your car and ask for the Oath letter… what they do is, they let a group of around 20 people get out of the car, do the Oath and when you are done they give you your certificate and that all!
very easy and smooth process
Sorry SJ