Re: Why didn't Kirk just contact Sulu?
Maybe the UT speaks a "trade language" type of Klingon which is why the Klingons would catch on that it was a UT. Choppy, crappy, spoken, "proper" Klingon could come off as a smuggler or a trader trying to bullshit his/her way across the border and nothing to really worry to much about (it's a theory anyway).
- SeerSGB -
Good men don't need rules, The Doctor (A Good Man Goes To War)