I'm still not used to getting out of the car without shutting it down, so I obsessively go to Controls--->Power Off when I park or leave the car. Of course, as soon as I open the door, it powers back up again, so now I'm opening the door, then powering off. Then things stay off as I leave/walk away. I just like to know that everything is shut down and not consuming battery power, like the lights, dash, entertainment system, battery heat/cooling, and/or cabin heat or A/C. Because as soon as I open any door (even a rear door) all those things instantly power back up again, even if I'm just getting something out of the back seat. I know in the long run, I'm not saving all that much power, but if I don't "power off", how long after I walk away (or lock the car) does everything power off? Is it really marginal power consumption to start up all those systems, including heat or A/C? Does everything "power off" the same way when I lock the car with the FOB? I know I'm a little nuts, but it still just feels so wierd to get out leaving everything on and walk off. Does anyone else obsess over powering off every time? Thanks.