SevenCubed - 11:46 pm on Sep 16, 2013 (gmt 0)
I'm not 100% positive yet but I think the highly targeted traffic is due to implementation of schema.org/localbusiness structured data elements.
I'll have a better idea with a new site that I started this week that is going to have literally 1000+ consumer products listed with schema.org/product markup.
It too is a locally focused, -- a retail business in a very competitive natural supplements industry.
(Bonus points for having a witty retort to site owner about putting lipstick on it in the grave!)
Need to have a sense of humour in this game / on this planet.