I had a similar incident happen with my Model X 14 days after picking it up. Parked in a store and the when I came back the car would not go into reverse, drive, etc. The only error displayed was the vehicle skid control warning (yellow car with squiggly lines). I called service and they spent an hour trying to fix it remotely. In the end they had to trailer the car to the Service Center.
Here is what the description of the repair, which took 5 days.
Concern: Customer states: Vehicle will not start and will not go into gear. Please inspect and advise.
Pay Type: Warranty
Corrections: Vehicle Alerts General Diagnosis
Technician downloaded and reviewed vehicle logs. Technician found multiple alerts as described. Technician found in a rare instance the drive rail remained on even though accessory rail turned off causing alerts. Technician performed 12 volt reset and found alerts are now gone. Technician verified vehicle operates as designed. Technician notes this is a extremely rare occurrence and should not happen again. Technician notes this specific circumstance is known and still under investigation.
Maybe it is something in the NorCal air. I am near the the Dublin, CA SC.