The 2 day pointless "cool off period" wait

The LC9 came in today from Ruger for me to test and do a review on.  So, I had to fill out all the paperwork, and now wait 48 hours.  Just so I have a couple of days to "cool off" and not go out and shoot someone.  WTF is the point?  I can understand if someone is a first time gun buyer.  HOWEVER, I am not, I have quite a few firearms in my safe.  If I REALLY wanted to go out and shoot someone, I would grab one of those, NOT go to Cabela's to buy a new one.  So what's the point?  Just another stupid handgun law that means nothing and does nothing but make bureaucrats feel good about themselves.  What a pointless waist.  Sorry for the rant