I got pulled over st patricks day weekend for a headlight out. Did the same thing (turned my lights on rolled down the window etc.) I was polite gave the officer my info and showed him the bag with the new bulb sitting on the seat next to me. He goes back to the car comes back a min later hands me my stuff and goes “have a good night, honestly I’m not looking to ticket you, I’m looking for people who’ve been drinking and shouldn’t be driving”