An observation of human nature or action?

While Mike was getting gas yesterday I was gazing out the window people watching. At one pump I noticed a Cadillac SUV and the pump behind it a Japanese couple pulled up in a rental car. It has been my experience here with anyone in a Cadillac SUV, so far anyways, they tend to 'ignore' anyone, even be rude by cutting off or blocking entrances/exits. (This on was no exception to the latter, but thank goodness I've not had to see this on the road only at gas stations). I watched Mike go in, and a nice older gentleman held the door for him as he noticed him approach; he then walked to the SUV and I smiled inside thinking "hmm, maybe this one will change that image I have" but he climbed in the back seat. When the driver came out, the Japanese man followed him to his car, he glanced at the couple behind him causing me to glance too. They were confused as to how to work the gas pump; not surprising to me. So the SUV driver opened his trunk put in his case of drink and got in the car and left. That surprised me. Even the couple looked surprised; so I rolled my window down and asked if they needed help. They did so I did.
I was a bit disappointed in the lack of actions or should I say the lack of courtesy. I suppose the way the car blocked the way around the pump should have tipped me off; and for some reason I feel or sense the elder man who sat in the back noticed as they drove off.