Was this guy a little anal?

here is a typical car in question. These are all coming from an old barn by the road that has been closed for decades. The cars are being put out one by one, with a for sale sign and brief description. On the signs it clearly states to call the number and not go to the house. I post a pic of the sign because it’s out there with the car. The owner wants to sell the cars and has included his number for all to see. They aren’t on the busiest road, but I’ll bet me posting them has increased the interest in them exponentially! So far, 3 cars have been sold, and 2 more are out there. Is this considered wrong?

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Out by the road with a sign, to me is a public invite. If car is not locked, I wouldn't think twice about taking pics, opening doors, hood, whatever to inspect. If a car is right up by someone’s house, even with a sale sign I‘D do a walk around, but would normally go to their door before touching it or taking pics that might have the house or other things in them.