Inexpensive solution
This is a simple and inexpensive solution that works.  Note that if you want to test it yourself, turn off your phone’s bluetooth first because if your phone key is detected, it will unlock your charge port even just trying to press the latch.  But a stranger won’t have a key and when they press the latch, nothing happens and they cannot get the J1772 to separate from your adapter.
Rating: 5 stars