>... And from the police radar surveillance van sitting in the street in front of your house.

Nothing a kind note and an order of small-batch artisan donuts can't solve.

> You have to shield your home from your neighbor's emitters too. And from the police radar surveillance van sitting in the street in front of your house.

That's what tin foil houses are for, obviously.

And for saving them from raging wildfires. (Seriously! Wrapping a structure completely in foil can save it, even when that structure is in a forest with no clearing arund it. I guess it's like baking a potato in hot coals.)

What do I do about my thermal signature though?

Cover yourself in mud from a river bank.

Wim Hoff method. ;)