Bicycle detail

My bike was locked up outside the Trader Joes I work at, in etween the window and the bike rack. I was inside working, when a friend and coworker saw a guy cut the coil lock and pick up my bike. It was a short stature, stocky white guy wearing a baseball cap and a roughly 5'6, thin white woman who looked kind of sketchy. They left an old crappy bike behind, and rode off on mine and (presumably) their bike. We ran outside and gave chase. The fled East on Holgate, and cut South into the neighborhoods before we lost them. The bike has my initials "kk" carved onto the back bar above the gears.