Not sure why this is downvoted, Tesla won't have the MobileEye system for new models and they want to roll out their own machine vision system, which is even more important now due to the new suite of cameras. That will take some time.
They been working on this before mobile eye dropped them. Around a year ago a car with this exact setup of cameras ( using webcams) was spotted charging.
This is one of the most insightful comments here. Too bad it gets drowned in all the rest. Also, if you read the WSJ or other articles they don't mention this either.
Good job by Tesla PR I suppose.