I took delivery of my Model Y last week. While running errands with my wife and 3 month old baby in the back seat, I notice that it turns off the AC every time I leave the car. With COVID going on, my wife stays in the car with the baby while I go take care of things. I tried turning on the AC with my app but it only turns on the AC in the front row, and the back row doesnt turn back on unless I get into the driver seat. Is this normal? I thought that it senses passengers and keep the AC on. Am I doing something wrong, does anyone else have this problem?