I happened to go through a car wash the other day, and of course put it in neutral while the attendant hand washed the outside. When I exited, I happened to look at the Energy Screen on the Nav system, and it was purple. I was probably in neutral for about 4-5 minutes. I don't know what the SOC was before I went in, but it seemed to decline pretty fast. I had the radio on and the A/C on at the time.