Picked up the replacement SmartID today - in an out within 4 mins.
The Sheung Shui branch was much less busy. Didn’t need to register to pick up.
Note: Fo Tan branch had a sign saying no more appointments today already at 10am (for appointments).
Showed the paper, got called to the collection booth, right hand thumb to verify, gave the old card back which was hole punched and retained, new one was handed over with a plastic pouch.