I think it's faded plastics. Judging by the other colors in the image mainly the nuetral tones like the weeds and the street in the background they look to be the right tone. And teh blue and green a to vibrant to make me think just teh orange would be the only color to be affected. Plus if I set the black and the white in the image the colors do not change.
i've been having some of the same issues shooting at nocona. it always seems like the dirt looks really orange and everything seems washed out. i got velvia vision now, though, baby! just started messing with it last night and i was blown away! that fred miranda is a genius.