Hard rock live Hollywood:Lining up 4 concert

I have a concert coming up and I have never lined up early for any other artist until this one. I have floor tickets and I believe on the website it says the earliest fans can line up is 12 P.M. Has anyone lined up at 12 before ? and if so, was there any sharpie numbering done by fans or do the venue people grant a number on the line? How would breaks work? Are people going to respect the spot I was in for bathroom breaks? I’ve hear people make friends with the people in line to do so. Any information on this would be appreciated as the show starts at 8pm for the opener, which I wanna be barricade for.