I decided we would go and at anytime that it wasn't going well we would leave. We didn't have to pay anything for the littles to do the race, just my mom, Brandon and I.
It turned out to be a blast! And a learning experience...
Lastly, the clean up was surprisingly easy too. We brought extra clothes for the kids and changed them before we got in the car. We used wipes to clean their skin as best as possible and then we just put towels down over the seats for us. I never saw a trace of it in the car.
The littles talked about it for months and still mention doing the 'color run' when they are doing laps through the house. They have asked when we could do it again! We may just have to make it a family tradition to do it each year.