Sometimes I have to fly places where the gluten-free awareness is basically nonexistent or merely highly untrustworthy. I am usually located in a venue hotel, so if there is food shopping in the area, I can often make do (or better). If I am only gone for a weekend, I am unable to justifying packing a large suitcase so I have room to bring a rice cooker in case there is meat available locally.
I'm not sure if information can help me. When I was in the Bahamas for a week I found there was basically zero awareness locally of gluten-free cooking, and no food stores open within walking distance during the hours I was at my hotel. I ended up with leg cramps from eating mostly the nuts I had brought with me.