Sorry to bump an old thread, but on Saturday, this happened on my Oct 2015 built S90D. I was detailing the car, had the rear hatch open for an extended period while I was vacuuming, etc in the Phoenix AZ heat. Closed it, tried to open a few minutes later and got the beeps but no movement.
Tesla is sending a ranger out (scheduled Tuesday 8am, but his load on Monday may allow him to come sooner ). Hope it can be resolved before we have to leave town on the 29th.
For the locks, the service writer at Tempe Service Center showed me a trick --
* Before you exit the car, with the driver's door open, touch the 'Lock' icon on the middle screen
* Exit the car
-- Car is now locked, even though it thinks the trunk is open.
-- Handles will still present as you walk up with the key, so if you want to test, make sure the keys are not nearby.
Hopefully, this will help someone else in this situation.
I must say it is super annoying not to be able to use cruise control (let alone auto-pilot). I find it difficult to judge speed with the car so quiet. so I've turned on the over-speed chime to keep me from getting a ticket till this is fixed.
LK