I had someone from Google (young guy, summer job stuff) come into my office park and map out wi-fi points asking us if this office is still where the company I

I had someone from Google (young guy, summer job stuff) come into my office park and map out wi-fi points asking us if this office is still where the company I work for works at. Google has the resources to utilize HUMINT. That's how Google knows where you are. This guy said he does this in a bunch of cities, driving around the geographic area of the USA where I work in. Very interesting to learn about. Edit: I am not located anywhere near where Google has an office, so for him to stop by was interesting by itself. Edit 2: grammar.