Struggling with Mobility in a Busy Town

Sometimes I need a walker to walk/stand. So, I had to walk a few blocks to a doctor's appointment today. Well, there is a highway that divides this rural town. It also divided me from the doctor office. I don't walk fast. I am tiny and my joints are aching with every step. Well, it took a few minutes to get across on the way to the office. That's great as this is the busiest street in town and around 1pm. However, I have to cross again after the appointment. It was super busy and there was large semi trucks with loud motors and so many cars... It was a lot to handle. I was okay with waiting until things calmed down. I looked at this greyish black semi which was within a block away. When it was about 30 feet away, it stopped. No stop sign. No reason to stop. I look the other way and a couple of cars pass then a white van stopped. I was surprised. They waited for me to cross. Most people wouldn't care.