Yes, don't get run over or killed, it isn't that important!!
(& no one makes one in O Scale anyway!)
You get a few seconds warning, just keep an eye on the brake cylinder, when it closes.....it's going! I did get some of a reefer trackside but nothing too detailed and I was looking for a clean one, but every single one I saw was covered in graffiti half way up.
I did get some better walk around, mostly two bay hoppers of varying designs and a 100t bottom dump coal gondola, plus some bigger three bay hoppers line side.
Just around 6000 photos so it'll take a while to work through them. A decent two bay etch set up is my priority right now. It's fascinating to watch and listen to DPUs start and then configure when they go on line, lots of hissing and clunking.