Many thanks to kmainiac for sharing his selfie with Keanu in instagram. The photo was neartthe Santa Maria Brewing Company. From the tags, it appears to have been at the Paso Robles location.
Update: Many thanks to kmcampbellsoup for sharing their photo with Keanu that was taken in Paso Robles today on instagram.
Update X2: Many thanks to gcgodfrey for sharing her selfie with Keanu on instagram.
Update X3: Many thanks to the Santa Maria Brewing Co. Inc – Nipomo Tap Room for sharing a photo on FB.