Locks are only deterrents. Any sufficiently knowledgeable and determined thief can steal your car. Making your car slightly harder to steal than the one next to it is sometimes a good deterrent. But if someone really wants your car, nothing will stop them. A flat bed is a good example. I can drag your car up onto a flat bed and be gone in a couple minutes. Now I have all the time in the world to circumvent your protections, if I choose to do so. Or just part it out.
Many years ago, I had a club.
Everyone told me how easy they were to defeat and it was stupid to use it.
Yet not once was my Cadillac touched when lesser cars around me were stolen.
Why? Because it was harder to steal with that club in place than the cars around me.
Most thieves are opportunists…