I believe I've seen claims the are recording Bluetooth MACs of passing devices, and I've definitely seen that they're also detecting people on the camera feed.
Also, 10 or 15 years back, I wrote an Android app to do ALPR on the live camera view with the phone in a holder that let it see out he windscreen. I collected licence plates by spending an hour or so every few days over a few weeks sitting at cafes that had a good view of the marked and unmarked cars arriving and leaving the three major police stations nearby. It did work, but the camera in the Galaxy S3 and S4s I had to try it on couldn't get images good enough for OCR until the cop car was so close it wasn't useful... I contemplated experimenting with a drone camera gimbal when I was building and flying camera drones around 2014/2015, possibly using one of those clip on telephoto lens's that were common back then - but by then I'd ditched the car and I didn't figure I;d be able to build that to work on any of my motorcycles.