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If they'd just make it so the charger would UNPLUG when you release it from the car that would be half the battle for minimal cost... an elastic or spring to retract and lift the unplugged cable out of the way and leave it high and dry maybe. As a wheelchair guy who has to wait for somebody to unplug the charger for me when I get bottled in at the supercharger because I'm trapped with not enough room for my wheelchair so not being able to get out and squeeze between the cars to get in my chair and unplug it myself, it would make life easier and help me vacate the charger stall faster after I'm charged.
Good idea, with a perspective that probably too few think about.
Tesla had to introduce idle fees because some users would otherwise tend to leave their cars at the stall longer than needed.
Now, if one can remotely unplug one's car (e.g. via the app), then some may become tempted to do that just to avoid the idle fees - since these are based on whether the car is plugged in.
So, some thinking is needed here...