Hawaii rolldown question

I’m racing IMC and if the stars line up…anyway I see that they only accept cash or check drawn on a US bank. So as a Canadian, how can I go about paying. I’m not showing up at rolldown with $450US since thats like wearing a finishers shirt before racing. Do I have a hour or two between getting the spot and having to pay? Thoughts? Thanx.

I would say taking your cash is more like carrying a spare sew up and a co2. Be prepared for the best and the worst of situations