Was this guy a little anal?
So, I’ll chime in here. If I see a car for sale, I usually stop and look it over, take pics of it, and post them in a public forum with the phone number for interested people to call if they’re interested. Only once was I called out on that practice by the owner of the car, mistakenly thinking that I was listing it as my own. My opinion is that if you’re selling a car, or in this case are a yard that is selling to the public, then pics of stuff you have should be welcomed as free advertising. If it is a closed to the public yard, then yes, proper etiquette must be followed.