>>so unless I'm targeted by a three letter agency it's not something worth worrying about.

I'm not so sure about that - I used to have some fancy cars in the past and I've heard many stories from people saying they've been followed to car parks, home, or had only the keys stolen from their home and nothing else - fancy high end cars are almost always stolen "on order" and not by opportunistic thieves. These are the kinds of people who will research what is needed to take your car before they come to your home.