"Successfully manipulating a poll which employs this method would require following efforts and resources:

Gaining control over a large number of devices in the target geographic region for submitting votes through those devices"

So yes, it seems like it can be defeated via a remote desktop (or any proxy in the allowed area)

I will say, being in Manhattan, their seems to be less traffic on the road. I wonder if Google Maps traffic data is using a rolling average of ~7 days or something