Are you kidding me? Aren't people capable of imitating the real thing. How many have you tolerated as they brag on themselves? There are way to many ifs here to make judgement. Your really only guessing his intent and nothing more. Maybe he did, and maybe he didn't intend to ruin your perfectly laid plans. Thats hunting! You as the experienced hunter knowing that he was closing in on your position should have adjusted accordingly. Better safe than sorry, just sayin.
Like gramps used to say, "Why is it there's never time to do it right, but there's always time to do it over?"