Hawaii or Havaii - Unresolved

I'm sure you all know the joke. However, what you may not know, or may not have thought of, is what conclusion remains after the joke.

Shaul and I had it out this evening. According to Shaul, since it is evident from the airport officer that his w's are pronounced as v's, it is therefore clear that the word is Hawaii, and pronounced as a w.

I disagreed. True, that the airport officer pronounces his w's as v's, yet still it might just be that Hawaii is 'tukkeh' pronounced with a v. Nor vos, for this person it is because that's how it is with all his w's, whereas with others, it happens to be a unique pronunciation for this word (and thus the argument between the couple).

Ah"n it is quite dochek, however all I am proving is that b'svoro, it can't be proven that Hawaii is pronounced with a w.

V'avakesh m'hakorim lehoir bozeh.