this is a complicated relationship question?

ok, here's the scenario. My wife (age 58) recently took part in a 240 km bicycle ride (along with 10,000 others) to raise funds for cancer research. She did fund raising for nearly a year (with my help) in order to get the necessary money. She left our home on Friday morning with a friend who was also riding, traveled to the start point, spent the night in a hotel and was off on the two day ride starting Saturday morning. The ride finished up just outside of Seattle and the riders were all transported back to the start point in Canada via bus. She got back to Canada around 5 pm on Sunday. (I didn't know this until later). I was expecting her to call me when she got back to Canada to let me know that all had gone well and that she was safely back in the country with some estimate of when she might be home. As I said, she was back in Canada at 5 pm on Sunday. She never called me. (we have free cell to cell long distance anywhere in Canada), instead asked her friend who called her husband to let him know all was well to call me. He didn't call me until 9 pm so I spent the evening worrying about her, not knowing whether she had safely returned to Canada and with no idea of whether she'd be home that night. The friend, as I understand it called her husband three times over the evening. Finally, after 9 o'clock (10 minutes after the other husband had called me), she finally called to say she'd be home around 11:30. I was upset with her and angry that she didn't think enough of me to call me to let me know that she was safe. (There had been a fatal accident where one of the riders was struck by a car and killed. I knew about the accident and that it wasn't her, but still, it was still very upseting). Before anyone says I should have called her, I need to explain that whenever I call her when she's away, I'm accused of checking up on her or of trying to be controlling or of treating her like a child. (None of which is true).

So, basically my question here is this - am I wrong to be upset with her or should I just turn the other cheek. She hasn't even seen fit to apologize nor acknowledge that she should have called me.