I guess I have a different opinion than most of the people who posted- I would be upset, and I can understand where you are coming from. I think the thing that would annoy me the most is that he said his cousin couldn't pick him up as an excuse TWICE. And the day before hand. There are other modes of transport in Chicago, like a bus.

I know that no one is perfect, but I do think it's important for people to remember things that are important to their loved ones. Of course it's not the end of the world but I do think telling him how you felt might be a good idea. Maybe he just "doesn't get it."