Many thanks to kat_alvz who shared the photo that she took of Keanu on Webstagram. She snapped the photo about an hour ago while he was out for a coffee and smoke. The photo is here.
Update: She has posted two additional photos of Keanu since I last checked. They are here and here.
Update X2: Many thanks to tominluv for sharing his photo of Keanu in the Blue Bottle Coffee shop and to @keanulatino for tweeting the link! Photo is here. As an aside, the Blue Bottle Coffee shop is located in the art district in Los Angeles. There page is here.