Sorry Model Y - It has been suggested I need to turn of sentry then can do intrusion, so will have a look thank you for the suggestion. With regards the A/C, i'm not going to do it in the middle of summer, but currently there is no need for aircon for 15 mins while I pop to a shop.You don't say what car you have, but in some models there is the option to turn off the tilt/intrusion sensor.
Otherwise:
BTW I'd be concerned you were leaving a dog in the car with no A/C on.