Here is a shot of the D&H #4103 switching the G.E. facility in Waterford on November 09, 1985. The camera is facing north, and the train is on the eastern track which is a switching lead (or might have been some existing double track at that time, though I think not). The building on the right is now currently a business called Tony's Tires, and from online maps it looks like you could actually drive there without having to go through security check points.
It is worth pointing out that by 1985 there were only at most two RS3 engines in the "Lightening Stripe" scheme, and nearly all of the old Alcos were based around the Colonie shops. So it makes sense that one of them was used for this job.