This reminds me of my last trip to DL - well, actually this took place in CA. We were sitting on the ledge of some planters, waiting for the parade to start. Everyone in my family was present the entire time and we sat there for about 2 hours prior to parade time.
About 5 minutes before the parade started, an elderly couple comes wandering up, looking for a place to sit on the ledge. The ledge is completely full, as is the ground surrounding the ledge (people sitting on the ground). A CM asks everyone to scoot down the ledge to accommodate this couple, so we all obligingly scoot down, even though the ledge where we scooted down to is starting to slope downwards, making it impossible to sit on.
Then a college aged couple comes up and the CM directs everyone again to scoot down to make room for them. At this point my sister and I point out that we had been sitting in these spots for 2 hours, had chosen these spots specifically so we could sit, we had already accommodated the elderly couple and if we scooted down some more, we could no longer sit on the ledge. The CM basically orders us to make room for the couple and stands there to watch us move. We inch over enough so that one of them can sit on the ledge (and at this point I'm sitting on the slope, which is rather uncomfortable and I eventually end up standing) and refuse to move further. For the rest of the parade we get dirty looks from the girl and her boyfriend, muttering to themselves that we were refusing to move down.
That incident really left a bad taste in my mouth (mostly towards the CM) but also towards that young couple that seemed to believe that they could stroll up to wherever they wanted to sit and be entitled to a seat 5 minutes before the parade starts.