You just press the handles and the car is awake and unlocked again.
pressing the door handle would have opened the door.
I give you from the original post you're replying to:
I pressed the handles, nothing worked.
And as I said in the other thread, I have experienced this as well. Pressing the handles is supposed to work. Apparently sometimes it just doesn't.
In my case I did not leave all my access methods in the car, I was just trying to leave the fob in the car (at home) to keep my 12V-powered cooler on while I was in and out loading the car. Instead it shut down, locked, and wouldn't open again without the app.