Coming from Cleveland National Park to Carlsbad for longboarding. A car's tire blew out and no one would slow to let it over. I slowed, put hazards, and forced people to let it over. It was a lady with kids, which none knew about changing a tire and had no roadside assistance. I told the oldest to come and guided him to change his first tire. I know he loved having the opportunity to learn and help his mom. They headed the same direction, so I followed until it was my exit.