Strange YouTube ad

So this evening I was listening to a lecture on YouTube while I was driving. I stopped to get gas and set my phone on the seat when I got out of the car. An ad popped up while I was listening (not unusual) so I picked up my phone to press the skip button. As I picked up my phone I noticed the ad was tracking the motion of my phone. It’s like I could look at the ad …

button car driving gas listening phone press privacy youtube