If nothing happens with it plugged in and running there would be no need to start it with it plugged in. I was thinking I would cool the car off on grid power.Just remember it's a one-way street.
If you leave the car on and plug in, it will do nothing (don't leave unattended in enclosed spaces as engine may start)
The car must be off first to acknowledge the plug-in.
OK, I think I read your post wrong, you're talking about driving up and plugging it in while running.
I never do that. I've been turning the car off when I get home then waiting a while before plugging in.
Like let the battery cool before starting charging. But then if it's a hot day it might be better to plug it right in after I turn it off so it can run the fans etc.
Vexed and mythed.