I did something similar at work about 15 yrs ago. One of our guys with a nice new Olds or something like that used to always park near the fence/gate and take up 2 spots. One night I saw that I had a chance to park inside his 2nd spot and did so.
He came back in and said, “parked kind of close, didn’t you?” I said, “I’m between the lines.” He started to say something then realized he didn’t have a decent reply and walked away. He still took up 2 spaces after that but did so in the far side of the parking lot. He has not parked by the fence/gate since.
Learning has taken place!