Overall, was a good experience. I probably won't make a regular habit of it, but it did okay and was way easier considering the caked on dirt that was on the car. It even got a considerable amount of the dirt out of the wheel wells and off of the rims too, which is impressive. Service was great and the fact that they open late is very convenient.
Left the X in neutral while I rode through the tunnel, but was very careful to not shift in my seat or unbuckle the seat belt to avoid the auto-park being triggered.