Straddle or Kill

[mblax10]

Playing 10/20 LHE w/ half kill. My local room does not allow anybody to straddle during a kill hand (side question is this a standard rule?). Game is playing great with 3-5 straddles per orbit and lots of action. UTG throws out $20, dealer announces "live straddle" and begins to deal the cards. As the dealer's dealing the second down cards, a player in MP says "kill pot" and posts his $15 as he's won the last 2 hands. Dealer's unsure what to do since he's already announced the straddle and had forgotten this should be a kill pot.

A few players begin to discuss what should happen. Being a nit I tell the dealer he should probably call the floor. Which should stand the kill pot or the straddle?