Are you arguing with yourself?
No one said the vehicle was fully discharged.
Your arms must be tiring from beating your own strawmen.
You said, “ We lost power for 6 hours last night in the middle of the night, after everyone had gone to bed.
I checked my ICE automobile.
It still had a full charge of gasoline.
My neighbor’s Tesla?
Not so much...”
So, you implied that the short power outage had not reduced the fuel in your ICE car, but *had* in your neighbor’s Tesla.