Lets use common sense a litte,shall we?
I haven't talked it over with MedO yet, so as of now there's no reward.
But logically no, there's a different code for Halloween winners and Haxxy winners.
This means one of those contest has no prize(witch is of course,the Haxxy(You misspelled it "Sexxy"))
If the purely cosmetic "Haxxy Winner" thing doesn't count as prize,Haxxy obviusly had no prize,only proof of actually winning.
This means Haxxy would have no prize.
Obviusly this might be flawed because i didn't quite understand you post,so ill leave you with that.