Lost Tuxedo Cat: Black, Shy & Neutered - Help!

Black and white tuxedo (mainly black). Prominent chin. Indoor, never been outside and is being taken care of by a friend as owner moving around. he has become too stressed with the move and seems to have decided to escape. Hasn't eaten in a day or so. Is VERY VERY nervous and skittish, so if seen, do the approach with caution as he will run. Afraid of men. Neutured and chipped. Main Vet, "the vet" in Millbrook.