Coldest you have driven your convertible with the top down?

The day I bought my first convertible, brand new off the showroom floor, 1984 1/2 20th Anniversary Mustang GT, 5.0 5 speed. It was -22F, January 16, 1985. I put the top down before I left the dealership and went for a drive, about 10 to 12 miles, heater on full blast, having a great time. Got lots of thumbs up from people, and plenty of waves, overall I think most probably thought I was nuts, but it was fun. I lived in a highrise apartment at the time, so eventually made my way home and parked the car in the heated underground garage, waited an hour or so for it to warm up before putting the top back up.