I put my money down 2+ weeks ago, waiting to get the word my S85 is ready.
It was located in Brooklyn, and moved to the Milford, CT service center for inspection/reconditioning. I was assured by my CPO Advisor that this was a product of heavy workload in Brooklyn at the moment.
So maybe they've limited the visible inventory to give their SC staff a quick breather? If you're seriously in the hunt for a CPO, call. They can see more cars on their end than what's on the public site.
The first HW1 cars that went out on lease 3 years ago are beginning to come back in as trades now. There will be more soon.
Good luck!