Nice, the lift.
I was not the one who was having a failure to understand.
"Please never reiterate that again, EVER."
The point was that at no time is it possible to keep the key radio-transmission-covered when accessing or using the car, completely covered, that is.
So far, I have found no one who is able to do so. As an additional point, I wonder if it is possible to keep the thing covered ALL the time, and use some extremely-close-proximity-with-briefly-barely-opened bag to almost eliminate a sniffer's chances at finding that code. If the location of which actual antenna that picked up the signal were known, one could perhaps just put the key very close to it, and this is the main thing I was wondering, how we can make it more secure, thus the fact-finding mission. Could we just touch our key bag to our roof antenna bump?
If the key ONLY FOR THE DRIVING PART is communicating with something in the interior with which it is not communicating for ingress/egress, could one make the center console into a Faraday cage, mount the receiver in there, and just drop the key in the bag in the console/box and close it? The "touching close" proximity would activate the car, but a sniffer would have to be absolutely Foxbat-class to detect anything.
The MiG 25 was famous for just using overwhelmingly powerful radar-roasting signals from its massive forward antenna to, instead of jamming enemy radar, hopefully overwhelming it and just burning it out. It was one of the first PUBLICLY KNOWN (eventually) uses of a directed energy weapon.