My karma is confused

Karma is supposed to reward you when you do good, and punish you when you do bad.  I think my karma is confused.

I'm always on time, it is very rare for me to not be where I'm supposed to be.  Most of the time, I'm early.  Mainly because it annoys me to be late.  It's rude to those who are meeting you and I know how pissed I am when someone makes me wait.  In my mind, if you're late for something, you're saying that your time is more important than mine, that you're better than me.  Now obviously things happen that you didn't plan on but it better be a legitimate excuse because, like I said, I'm usually early.  That's because I leave time for a train, or traffic getting backed up, or other everyday occurrences that can happen.

That brings me to today, Samantha had a field trip to Chicago.  I was supposed to pick her up at the school at 8:00.  I arrived around a quarter till in case they were early.  It generally only takes me around 10 minutes to get to the school from home.  So I sit here for about 5 minutes and I get a call from the school, at 7:49, it was an automated message telling me they wouldn't be back until around 8:45.  So had I been one of those people who are always late, I would have gotten that call while I was still sitting at home and could of sat around in comfort a little longer.  Instead, I drove to the local gas station, filled up and bought some cookies and milk that I'm eating here, in the parking lot, at the school, where I've been for almost 40 minutes now, blogging to you.

I'm a good guy, why doesn't karma like me?