This happened to me in Central Park a few months ago. It certainly is Google and they offered me a $5 Starbucks gift card for completing the process. I discusse

This happened to me in Central Park a few months ago. It certainly is Google and they offered me a $5 Starbucks gift card for completing the process. I discussed in length with the Google rep who was doing it and got some interesting answers if anyone is curious. They are certainly using this to train a model to authenticate faces similar to FaceID. I had to fill out a survey before which asked about my eye color, if I wear colored contact lenses, etc.