A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 102,617
I would assume no for TSA but YMMV.
For general information, check out the "sleeping in airports' website and look for the material on LAX. In fact, don't spend the night in an airport without it.