Two laps behind the safety car because it was a bit wet is a race? Give me strength!
Run it on Monday at noon, if possible, or cancel and give the punters their money back. Don't pretend that you had a 'race' and keep the dosh. Zandvoort, the next race, is only only 150 miles away. I have been to both tracks. It is logistically possible for the teams to race tomorrow and then move on. They do it for Texas, Mexico and Brazil.