Hint: If you get tased by an LEO, take a seat and follow instructions, rather than continuing to threaten him or her with a lethal weapon. It's safer for your health in the short term.
AFAIC, it was nice of them to try the taser first. They won't cut you the same slack if you point a gun instead of a knife.
Isn't it nice to know a radar detector violation will get you neither tased nor shot?