Community-based organizations used to do street outreach like this for HIV/AIDS. The data they return is usually pretty crappy, which does not make for good databases. Plus, I doubt anyone will pay for people to clean and reconcile the data errors. As far as I can tell, this has the standing of a door-to-door survey, and there's no obligation to be truthful. For example, you can tell them you are already vaxxed, you're recovering from blood clots, etc., etc.

BUT, you also have the right to see an informed consent document and receive information on who will be analyzing the data and how the information will be used. Obviously, this initiative didn't pass through any IRB reviews!