Does this product exist? Ability to collect high level user data from a car driving around?

Hi there, is there a product that I can place in my car and drive a specific route and capture data on devices that this machine interacts with? I would like to tie this into a broader marketing campaign where we can use this information to determine views or eyes that saw an advertisement. Essentially to quantify viewership in a nontypical online way.

Would love any insight, have been looking everywhere!

I don't know of any tech that does this, however, if you find it and it actually works you might just be sitting on a million dollar idea. Awesome way of actually quantifying billboard audiences to harder numbers, it'd be a good way to bridge the gap between reliable statistics in digital marketing vs offline.