GOLL isn't wrong here. On another thread, I shared how a few weeks ago, I was heading in to HEB, and a woman parked in TWO spaces (near the front of the store). That is, two side-by-side spaces were open, and she just pulled in and parked on top of the line, taking up the spaces so nobody else could park there. I was walking by as she got out of her car, and I said "No, you can't do that. You need to move your car and park in only one space." She looked surprised, gave me some "oh, I didn't know" line of bullshit....and I stood there as she re-parked correctly.
It was really easy to call her out and hold her accountable. She was doing something selfish/self-absorbed and shitty, and seeing it happen right in front of me pissed me off, so I said something, and she changed her behavior. I've also had a little punk driving his rice rocket the wrong way up the aisle at HEB flip me off and yell at me when I said "dude, you're going the wrong way." So, the mileage may vary.