Just wanted to chime in here....I live in a different city and different state, and a while back I had 3 separate police contacts with literally evert possible thing about me and the vehicle being illegal. Expired plates, expired registration, no insurance, no inspection, no license, and likely more. Not once did I get a ticket. Although I am white I don't believe at all, that that was the only factor in letting me go. It may have played a small part in an instance, I can't say for certain......but I also have known black people to Also get away with similar or worse stuff, and I believe I know the reason.

City cops, especially in rougher neighborhoods, have a lot more important things to do than worry about driving violations.....things that are more "life or death", and serious felony stuff. I'm sure it's a while bunch of paperwork and time also, which seems like a waste. I used to deliver pizzas all over the city and they would see me running red lights and doing other illegal stuff and never pull me over. Now, if I ever leave the city, it's a whole other ball game, but IME, they don't care about that stuff. Maybe it's just the city I live in, I don't know.....but I suspect this isn't the only place things are like that.

Just a thought on another angle besides "white middle aged woman", which in your case, maybe did play a bigger part. I can't say.