Starting late last week we saw weirdnesses in using the location setting option in Google organic search.
Initially it was throwing off errors that it could not recognize cities like New York and Chicago.
That error disappeared and you could change the location. However weird results started cropping up with the local pack results reflecting the new location setting but the organic listings reflecting Google’s understanding of your browser location regardless of the location settings. Here is a Google + discussion joined by John Meuller that looked at the issue: Have Google switched off location settings in Search Tools?Google Location Results Still Screwy by Mike Blumenthal