Had my M3 for a couple of weeks now, and ive really been burned by the supercharging idle fee. My problem is the superchargers I use (Sherway Gardens, Toronto ON) are so far away from the amenities, that I always get dinged with the idle fees. A couple of times the Tesla app notification has not pushed to my phone, so I always have to check the charging time and try to time it right. Also, there is always only 1-2 Teslas, with a bunch vacant, which is a little bit of a diss. It take 10 mins for me to get to the food court, so it doesn't really leave me enough time to do anything useful other then wait in the car. I understand the need for idle fees, specifically in a busy supercharging station, but I think the 5 min rule is a little too harsh after a 20-30 min charge. It would be nice if it only worked if there was a large demand for the station, and if notifications worked properly.