My truck is 7.5ft tall but one time I was placed on the upper deck with like maybe 1 inch of space to the ceiling. I told ticket person I’m over height and they said no you’re fine on this specific ship

I forgot what ship that was

Ever since, I ask the ticket person which ship that is but nobody knows the answer

I want to specifically use this ship so I can sleep in my truck on the upper deck

Do you know the answer?