I can genuinely not think of any instances where this has happened to me.
I'm literally the most anally early person to anything in life, let alone parks, so I'm usually first one there if that's the plan.
Like in China every day I was at every park an hour before opening because I was left to my own devices and could. You know, just in case.
Even the ones that Taylor has mentioned, being late was the plan so I don't think that counts? I guess Hershey there was traffic tbf.