While I don’t suggest trying this at home (or while driving), wow. The trooper seemed as nervous as I do when I’ve been pulled over. He loses points for seemingly trying to not identify himself initially but was overall polite.
My experiences with Texas State Troopers, which have been more times that I care to admit, have all been very positive and respectful. My stops with local county/city officers average a bit more gruff.
While I want to get a dashcam, I won’t be using it for anything like this.