My car has remote central locking. I didn't know this when I bought it. It didn't come with a fob. I only found out after finding it unlocked outside supermarkets even though I could remember leaving it locked it on arrival. It didn't happen every time, maybe two times in three visits. It also happens occasionally on my driveway. As I don't have a remote fob I'd be quite happy to turn it off but I've no idea how this could be done.