I know you don't want to deal with it and don't want to hear about it, but whenever you do need to use a J1772 plug, getting them out is really simple and foolproof, but there is a technique. Don't leave the adapter in the port. Press AND HOLD the release latch on the J1772 handle, which will unlock the port in the car, but then grab hold of the adapter with your other hand and pull them out together. No need for messing around with the mobile app or the touch screen in the car to unlock or release anything. Here's a video that shows it.