Several years ago I took my Cigarette down to Ventura Harbor for a little run. They just happened to be running a POBRA race that weekend and asked if I would be a safety boat. I said sure and we went out with scuba divers onboard and was told what to do if there was an accident.
I had no formal training (other than being a former volunteer fire fighter) but wanted to help out so they could run the race.
Think what would have happened if there was a death or serious injury. There is no way I'd be involved now for fear of being included in a law suit, even if the accident wasn't in my area of coverage.
I will not even want to be a card boat in a poker run and would even think twice about participating in a poker run. As an individual, I can not afford to be involved in any kind of lawsuit. I don't think my insurance company specifically excludes poker runs but I don't know if they would cover me if there was some mass lawsuit of everyone involved.
The offshore racing sport is already hanging by a thread and this will probably kill it. Unlike auto racing, I don't think there is enough money in boat racing to keep it going.