Have you tested your keycard for unlocking the door? A few of us have issues with the card working when driving, but it won't unlock at the doorpost. Maybe he was trying to fix a "known" issue while you were there.
I’m having the same issue. Card works for driving but not locking / unlocking. It did work previously, but noticed when the valet couldn’t get in or lock it. I have a service appointment on the 21st.