Then put up a blink camera on the drive and when you get a notification that he has left on the camera just go to the thermostat app and turn his air off or up. 

He put cameras up facing the outside, and the day after Thanksgiving he vanished.I eventually found a relative who informed he me that he left the county and is now living with a relative to get the help he needs. 

Have you all installed cameras?

Depending on property size, security cameras may not be a bad idea anyways. 

I also have camera in the backyard , from yard and at the door. 

The BLS indexes for retail sales, new and used autos, food and beverage stores, restaurants and bars, building materials, clothing are screaming inflation. this is the highest inflation since the 1970s. the current bout of inflation was demand driven before there were supply shortages.The previous housing supply shortage was artificial - the banksters (who admitted on camera in a documentary that THEY caused the crash) increased demand through predatory lending.

Cell phone camera images are date stamped and useful if no health or safety code violations show up.

Better yet, hire an expensive, ASHI-certified home inspector who has an infrared camera.

Just got one tonight from a radar camera in DC while heading back to Stafford. 😳 

(may have rooftop decks if we can get a view, we need to take the quad copter w/camera over to check that out this week) You can see preliminary plans on my website under current projects.