This happened to me for the first time last week. I was in total shock. I found both my windows completely down. Luckily it was a sunny day out. As you know, last night we had horrible rain and storm. I had the keys in my pocket (by mistake, I usually keep it on my desk) most of the evening. Before going to sleep, I had to get out in storm and rain and make sure my windows didn't come down by accident. I was soaking wet
. So, yes it's a cool feature but can be annoying at times. I wish there was a way to disable this feature in the winter.