If I was actually in this situation, I'd probably do a mixture of these three things.
[list=1][*]Flee and try to find some basic survival needs.[/*]
[*]Anyone I meet try to "ally" with in the sense that we don't kill each other or anyone. If they have the means, offer them the opportunity to kill me in as painless a way as possible.[/*]
[*]Find a nice tool or location with which to commit to painless suicide.[/*][/list]

Mostly the first one, because I'd be too scared to trust people not to slit my throat or whatever. [i]Please[/i], just shoot me between the eyes or bash my head in with one clean blow. It's all I ask.