I was late for Court for my hearing to have the bankruptcy fee waived and the judge had already left the Court room. I went back to the filing window

Unless the order dismissing your case contained a restriction on refiling, you should be able to file again. However you will only have the benefit of the automatic stay in your new case for 30 days unless you file a motion and have it granted prior to the expiration of that 30 days, to extend the stay. Otherwise after 30 days, your creditors will be able to commence or continue collection actions against you until you receive your discharge.