While I keep my baby in the garage whenever I'm not behind the wheel, I also take the step of putting both Keyless Entry fobs in a metal can with a lid because my key storage area is near the front door. I use one of those Christmas candy tin boxes, about 5" X 5" X 4" high with a lid. As with the bag, it acts as a Faraday Cage, disrupting or blocking any signal from the fobs to a receiver breadboarded together from internet plans. Reports have been circulating that some of those receivers can pick up a fob signal from as far away as 30 feet, after the thief's transmitter sends a universal signal to activate the fob. This way, the bad guys can't even tell there is a signal from my house. I know I'm being paranoid, but as the CIA motto goes, "Am I being paranoid enough?".
Many people keep those boxes kicking around anyway for knick-knacks or in their home workshop so I am not spending extra coin, and I don't fumble around with a bag all the time. I'm not overly worried about being in a crowd situation and somebody picking up the fob signal from my pocket - most of the time there are many others with the keyless entry for various other cars and those signals are not discriminatory i.e. you can't tell whose signal you're picking up.
I've also heard, but can't confirm, that several fobs kept together even out in the open, will foil a thief as the signals get intermixed.
Plus, my 2019 has a built-in "MAD" (Millennial Anti-theft Device) a.k.a. manual transmission.
