It would be great to have a chip or sensor (or I would imagine the car could determine based on charging time) to keep an L1 charger locked even after completion. Here in the US the L1 charging we use our own charger so if I park at the airport and plug-in, I would like to charger to stay locked even after charge so no one can take my cable. For the L2, I like the ability to auto-unlock since this is either done at a public location or in my locked garage.