Leaving AC/Fans on in vacant home

Other than for possible buyers, is there a good reason to leave the AC
and three ceiling fans on in a vacant home in Baltimore?

I'm working at home now and could go over and turn the AC on an hour
before buyer shows up (if they know in advance).

Or if the AC runs, shouldn't they turn off the fans so the hot air
from the ceiling isn't breought down to the thermostat and doesn't
make the AC run even more?


My friend is selling the home and it make take weeks or months, and
that's a lot of electicity and money wasted afaict.