I did find Pomona Yard in Greensboro. Safe, easy access even if the sun is in your eyes. I didn't see a lot of activity. SD40 hi hood? I'm not sure. Strange looking yard slug. These photos taken from the car sitting on the street that parallels the yard.
where you over in NC on April22? I was all around there on the 21, 22 and 28th. From Asheville to Spencer, High Point. I had class in Thomasville Monday to Friday.
I had already returned to San Antonio by April 22. Here is a link to the 916 taken by our own Harold Hodnett. It is an RP-E4D.
Not sure what day of the week you were there, but when I lived in Durham {84-90} there was a lot of activity in mid week.