Way to extend Accessories ON timer if at Drive-ins?

So my family and I went to the drive-ins recently and found out that after 15 minutes the vehicle will shut itself off even if left in the ACC ignition position. We were parked backwards watching the movie from the bed of the truck and every 15 mins sound would cut off as I am sure there is a safety timer so as not to kill the battery.

Does anyone know if the Toyota service dept or Carista app or maybe the toyota techstream app can extend this timer to longer than 15 minutes?

 

Possibly the tech stream, but your battery will probably be completely dead after a movie. I used to vacuum and detail my truck on ACC with the radio on, and more often than not after about an hour it was dead, completely dead.

 

You still have a drive in movie theater? I miss them.

 

I'm curious about this too. I don't need two hours but extending past 15 minutes would be nice when I am waiting in the truck while my wife goes into a store "for just a couple of things."