Blimey what a lot of huff and puff!
As someone who flies to and from the Channel islands with monotonous and boring regulatory and I can tell you quite categorically that as a private pilot with or without passengers your obligation is to give 12 hours notice of your flight. The GAR is a convenient way to do this.
It's up to plod to to turn up if he wants to and if he doesn't you just come and go as you please. If he does turn up he would have to show a VERY good reason to interfere with your plans as you are a citizen going about his lawful occasions and therefore not to be trifled with
