A full body covering is very possible if not probable. There is some evidence that the structures on the underside of the tail base are intermediate to scales and feathers. The rest of the discussion assumes the specimens do have short ratite-like feathers, but no contour or long feathers. If so it is a basal tetanuran, much less advanced than more bird-like theropods which show flight adaptations. No clear photos of the skin surface were published, and it is not clear whether the outer skin layer had been lost.
More data is needed.
Again more data is needed. The only small ornithischian skin reported was a nonscaly, punctured surface on Thescelosaurus earlier in this century, but the integument was not figured and is not accessible. The combined data suggests but does not prove that feathers evolved in terrestrial theropods well before the evolution of birds, at least by the L. Jurassic and in tetanuran theropods. How much earlier feathers may have evolved is not clear, so Triassic and earlier Jurassic theropods may or may not have been insulated. Therefore artists should feel free to restore Coelophysis with or without feathers.