Most of these people share their stories on the youtube channel for Vinwiki. One of the record holders, Doug Tabbutt, has gone on record on that channel as saying he carries a PBA 'get out of jail free' card: https://www.bbc.co.uk/news/world-us-canada-42780382
Reading the article, you might think they're lucky not to get pulled over. But they do get pulled over. They're lucky because they get away with it. There are multiple stories from this group of people on that youtube channel where they explain how.
Sometimes they cover the cars with pro-police political nods. Sometimes they race in cars that are deliberately made to look like foreign police cars: technically legal but the intention is clear. Sometimes, they participate in slower, legal rallies to raise money for police charities, which give away clothing that is convenient to wear for their illegal races.
The Cannonball Run is an exercise in using bias and privilege to avoid retribution for deadly crimes. These people are proud, unapologetic criminals who get away with it because they're in the right clique.
Another one of these people is Alex Roy. He works as a director for Argo AI, where they make autonomous vehicle technology.