I've tried two more times, on two different Lucids, and this is what I found out:
- Disable Passive Lock in the Settings menu
- Walk away from the car (hide the fob and phone)
- For about the next 10 minutes
- The coolant pump continues to run (A/C too if you left it on)
- The Screens are still on
- The Headlights are on
- After those 10 minutes
- The car powers down with door handles presented (and lights in them are on)
- Some 5 to 10 minutes later
- The car was locked; door handles were in
Update: when I went to the garage with NO fob and NO phone, pushing in the door handles a few times unlocked the car