ZAHAVAS dad: I’m not sure what Rav u asked but u should certainly not eat salad in a treife restaurant. There is the problem of tolaim in greens and the utensils and knives can not be trusted to have been clean and not touched tarfus.
Did you actually ask anyone. You should never poskin yourself. Not that I should have to defend myself, but I asked an actual orthodox rabbi and not a YCT one either. Just because you dont like a Psak doesnt mean it isnt valid
I also had some pretty frum relatives who had gone on a cruise. And had ordered Kosher Food (You can order Kosher food for cruises at no additional cost – Its airline food) On the same cruise there was a Kosherica cruise (They dont buy the entire cruise just some cabins) and they spoke to the Mashgiach on the cruise and he told them the same thing about the salad.