Okay, here's the answer to my Cabin Overheat issue. The manual states that it works for 12 hours after you exit your vehicle. So since I am in high risk category I have been locked down with only occasional drives without any stops to get out of the house. So as long as I am on lockdown I will go to the car every morning and enter, press the break, put into gear, put into park and exit. All of that to be sure I meet Tesla's programming for exiting the vehicle. No that I cannot park under cover.