Okay, sarcasm aside, it's probably more profound in people with ASD, like many other things. One thing that's always driven me crazy ever since I was a kid was when I would ask things like, "When's supper?" or "When are leaving to go shopping" and the reply would be too vague like "soon" or "later" or "supper will be ready when it's ready". My dad used to say that last one like it was going out of style.

Then I would get annoyed because all those things could mean anywhere from a few minutes to several hours, and I wouldn't know what to do to pass the time or when to start getting ready for the event. Last minute changes are also aggravating. I've had so many occasions where I'm waiting around the whole day to see a friend and then she calls me to say she's going to be coming much later or not at all because she's sooo busy. And I think, "Great, I just wasted my whole afternoon waiting for something that was never going to happen, GRRR!! !".
I also feel aggravated when a friend is late from an appointment or puts it off.
I consider myself more impatient compared to others. I can cope with it better now than I used to.