As a belated FYI, I pulled the Blacksmithing propane tanks to get refilled after today’s class. UHaul closed earlier than I realized, so I’ve kept the tanks over night to get them filled on Monday.
Someone reported the cage as being empty (thanks for reporting the issue, BTW).
Sorry for not letting folks here know more quickly - I kinda lost control of my evening when I first got home and it slipped my mind.