RR - Kingsley Ave. work done.

I was eating lunch at Grumpy's when I got a clear indication that the trackwork I mentioned last night is complete, or at least not disrupting train service anymore: a long manifest freight passed through.
Now, a new mystery: the first 20-or-so cars (with one exception) were hopper cars painted in what looked like Penn Central green. Whose cars are these? Where are they going? Curious trainwatchers want to know--if I find out, you'll read it here.