Fog in East Arlington

Every now and then a thick fog will roll into my neighborhood, usually late at night.  It probably happens a lot more often than I notice, and usually when I do notice I'm too tired to take advantage of it anyway.  Driving home around 2AM a few weeks ago I noticed the fog was particularly striking and I decided it was finally time.  I kept expecting a nervous neighbor to come out and ask what I was up to, but I didn't see another person on this slightly eerie evening.