Just do it anyway.
Make them enforce their ruling.
They didn’t “rule” anything. They just declined to hear an appeal from the 9th Circuit ruling. Almost all Supreme Court jurisdiction is discretionary and they only take 100 - 200 cases a year. Denial of certiorari is not an expression of opinion on the merits of a case.
The last time that I can recall that a State openly defied a federal court order was when Arkansas refused to obey a federal court order to desegregate Central High School in Little Rock. President Eisenhower federalized the National Guard and they enforced the court order at gunpoint.
I don't believe any State has tried something like that since then.