I actually had train graffiti in mind. (thus the nodding gif) Funny thing, I got caught at a crossing yesterday, in the rain, for an enormously long coal train. Car after car, no graffiti. They appeared to be coated with something oily and only official markings were clean of it. I saw many areas that had been sanded to bare metal and you could clearly see etching from graffiti there. Seems like BNSF is upping their fight against graffiti. I was on a hunt for other tags, so didn't go looking at some rail sidings I would have checked where cars sit for extended periods. (game had already moved on anyway)
On to Roadside memorial. Shouldn't last too long. A little cool today, but I may venture out.