My cousin lives in Hawaii, and was very much so in this same sort of state of mind the whole way through this. He lives on Honolulu, up on the side of the small mountain there, and like this poster, he wouldn't have been able to get anywhere "safe" in time. He rather calmly accepted things, with his girlfriend, and then when it turned out to not be an actual thing, started cracking jokes and having fun over it - and got back to taking life in stride.
He only just moved to Hawaii this past year, but he has the right kind of mindset for living there, really. It's a great place for him. I laughed over all of the things he was saying on FB once I could read them (I was out running errands when this went down).
However, as I mentioned on his FB post about it, I'm glad it was a false alarm, as I'd hate to have to go after Kim Jung-un (or whomever fired off the missle) over the death of my cousin. We Italians take our vendettas very seriously.
RE: Hawaii's Ballistic Missile Warning and What It Was Actually Like