Calico cat Luna with orange collar

I lost my calico cat Luna yesterday around 3pm after I pulled into the Stearns Wharf parking lot off Harbor Way in Santa Barbara. She's a medium-sized cat, mostly white with orange and black patches, and she wears a bright orange collar with a tiny silver bell. She has a white toe on her right front paw and a small scar above her left ear. Luna is shy with strangers but incredibly affectionate once she warms up, and she means a lot to me, she has been a quiet companion through some tough times. If anyone sees her near State Street, the Santa Barbara Mission area, or around the Santa Barbara Zoo, please contact me. I am really worried and would be grateful to be reunited.