At 3:19 PM I was coming down the escalator in the Whole Foods at Belmont and Ashland, and through the windows I saw a man lifting my bike in to the back of his white pickup truck. The truck drove north up Ashland, and I chased him on foot. I was wearing clip-in bike shoes and had a heavy backpack, which slowed me down, but I probably couldn't have caught him anyway. The white pickup truck seemed slightly older, I didn't get a good look, maybe 10 years old. The man had dark hair, dark facial hair, he was racial ambiguous, with light brown skin. The bike was locked to a large light pole. A cable lock went around the light pole and front wheel, and a u lock through the frame and rear wheel. It was only locked up for 30 mins. I called 911 to see if a patrol car in the area would keep a look out, but dispatch put me right through to non-emergency.