If, for some reason you haven't picked up the Rockstar Pass for L.A. Noire yet, you my friend are a very good procrastinator. You can pick up this pass for a measly $10 until midnight tonight. The Rockstar Pass allows you to get every little piece of DLC for the game for a lot cheaper than buying each piece separately.
So what the fuck are you doing still reading this? Didn't you hear the part about the deal expiring at midnight? Get on it!