Where do you live that you have "pre-trial" with a prosecutor for not having headlights on?
FWIW - it sounds like the officer might have been investigating something and cut her loose since he was focused on another more important matter. Following up with a citation by mail, while not always optimal, may have been his prerogative according to your state law.
Of every one hundred men, ten should not even be here. Eighty are nothing but targets. Nine are real fighters, and we are lucky to have them, for they make the battle. Ah, but the One... One of them is a Warrior... He will bring the others back.
"Wrong door, buddy!"
Let no man's ghost say my training failed him.