The other day, I left my phone plugged in the car while I went off to a meeting. I had been using the wallet card to lock and unlock, the phone had very little charge. After my meeting I went back to the car and the wallet card did nothing, the car wouldn't unlock. I tried several times in different positions and same thing. I went back inside to grab a coffee and contemplate my options. Without a working phone, the wallet card was my only access. The other card was home, I was thinking the bus might be necessary to go and get it so I headed back out to walk to the bus station. I tried the card once more, pushing in the door handle and suddenly it awoke and the mirrors folded out and it let me in. Hooray! But not quite. The rest of the car was still in some sort of deep sleep. Nothing on the display, pushing the brake pedal did nothing, the car definitely was not alive. I was about to call the Tesla service number when suddenly, the car woke up and everything seemed normal. Odd, very odd. Anyone had this experience? It hasn't happened since. When it does, I'll take notes and times and exactly what I did and call Tesla but so far, this is a one time thing. I took a photo so I'd have a time/date in case it happens again.