Any 'hidden' AP holder perks?

[wdwrule]

We recently purchased UOAP's for the first time. I was watching a Youtube video and I remembered someone mentioned a special area to eat at a Jurassic Park quick service (if I'm remembering correctly) for AP holders. It was described as a hidden, below restaurant seating... just for APH. Anyways, it made me wonder if there were any other perks to take advantage of that are not listed/or stated obviously on their website.

 

[1911]

I'm not sure about jurassic park but confisco grill at islands had a pass holder only seating area upstairs,also dont forget about the passholder lounge in universal.