Can't be on time for my class today

Many people or boss demands their friends or employees that they be punctual for any meeting, class, and work. Today, I was late for my class. I totally dislike the feeling of being late. Since last week, Samuel has picked two friends who are studying in LINCC and me up to college. One of our friend could go to college today, so we were supposed that Samuel, one of our friend and me went together. About 7:30 I met Samuel to the place that we should be met, but today he drove his car into a parking lot because he often stops on a side and let us get into the car or wait for us for couple minutes. Therefore, when I got into the car, the first thing that I did was that I asked him why he parked his car here. He said we needed to wait for our friend.(Because sometimes he doesn't go to college with us, I don't feel strange when I don't see him.) At the same time, I realized he would be so late that's why he parked in the park lot. Samuel kept calling to our friend but he only said he was coming by a bus. Then, Samuel made a big decision to drive to the bus routine that was opposite to NCC direction. We have already been familiar to the bus routine because we often take that. After about 10minutes, our friend got off a stop that was near our position when Samuel and I were in the car. Then, we started to go to college at around 7:45. Samuel was trying to drive quickly to reach NCC when I told the time to him. Finally, we arrived to NCC at 8:04 when my classmates were sitting on chairs and focused their attentions on our teacher. I don't like the feeling of disturbing people when they focused on something. I feel bad to my classmates and Bar (my teacher).