I'm new here, and wondered about this. If someone really wants to unplug you and you have either lock on, won't they just pull harder until something breaks? That's where mischief becomes vandalism. The socket and connector are all just high tech plastics, and a good hit sideways is going to break something. I bet it's an expensive repair to get your charging socket replaced. Even if they just drop the J1772 connector on concrete, it's likely to break. Seems to me there's an opportunity for an aftermarket tamper alarm here.
Ocean Blue 2014 S, 3.6kW OBC, no QC, purchased 10/21/17, 12 bars, Los Angeles
Car first sold in Buford Georgia
Dropped 1st bar 11/30/17
AmazingE 3.8 kW EVSE