I experienced something weird on my first long road trip. I was showing off the car's abilities to a friend so I decided to open it up a little. While going down hill on the 101, near Calabasas, the Pano Roof started to creep open. It opened about 1/2 inch. I found it unsettling. And as i slowed down a bit, the roof self closed slowly as I approached the speed limit. Has anybody else experienced this? Should I report it to Tesla? Thanks!