My [vacation][1] just ended, and I'm at the airport headed back home! It was definitely an enjoyable trip, but it could also be described as, well, unusual.

I've got a more immediate problem though. I've kind of forgotten which gate my flight arrives at. The answer is probably somewhere in the grid, but I can't see it. Could you help me out?

    LOFCSURFTCZLRNTVZFUUNRBTON
    JZTZODUJRTSCJCBFNOFSYSVZCJ
    RFBYMBVRMSOYYLNMYYJCDLRFZB

Clarification: Gates are identified by a letter followed by a number. 

Hint: 1:
>! Two words in the exposition are precisely chosen to be relevant.

Hint 2:
>! No, not primes. 

  [1]: https://puzzling.stackexchange.com/questions/14947/whats-happening-on-my-vacation