Thanks for the info on that loco... I was wondering where it came from!
As last I knew, the NOW has the blue one, a green and yellow one lettered for OmniTrax, and every once and awhile a blue/gray loco lettered as OmniTrax shows up.
They store their locos near the American Standard plant in Tiffin. There is a wye track there where one loco sits on the main and the second loco sits on one of the wye tracks.
Here is the only other one I have seen there on a regular basis with the above photographed locomotive.