Not sure what you're complaining about. You asked the question and bluebtr gave you the correct answer, then treemanji gave you the roadmap on what you could do as an alternative. However, you tried to show up and launch anyway after being told they don't do it that way. The ranger was helpful with getting the paperwork started the day before, and like you said, they were waiting for you to call in the next morning. It sounds like you could've launched at 8:05 am with the way they were helping you out.
Nothing in the world is more yielding and gentle than water. Yet it has no equal for conquering the resistant and tough. The flexible can overcome the unbending; the soft can overcome the hard. - Lao Tse