Wif is - OffI've noticed when connected to WiFi that my car will often stay awake at night for several hours, I assume to upload collected AP related data. Usually, the battery drain is no more than a few miles; but on occasion, it's been as many miles as you mentioned. Try temporarily disconnecting from WiFi or disabling data sharing to see if it makes a difference.
Data Sharing option is on - You mention it works only when Wifi is on. Or does it work on LTE? Should I keep it off for tonight?