Small grey hamster with blue wheel

I'm really worried—my tiny gray hamster escaped from its blue carrier yesterday around 4:15pm. It’s about 3 inches long, with soft gray fur, a white belly, and a tiny brown freckle behind its left ear. It has a blue, squeaky wheel and a small white patch on its chest. Last seen near Toomer's Corner on College Street in Auburn, just outside the campus bookstore; the carrier latch was loose and it slipped out when I wandered off the curb. It’s a gift from my sister and means a lot to me—if you found him, email [email protected] to arrange pickup.