Out of California no less.
http://www.wnd.com/2013/12/judge-says-waiting-period-burdens-2nd-amendment/A federal judge in California has ruled in a Second Amendment case that a state-imposed waiting period to take possession of a firearm is a burden on the constitutional right to keep and bear arms.
It was Senior Judge Anthony Ishii of the U.S. District Court for the Eastern District of California who said in an 11-page decision that California Attorney General Kamala Harris “argues that the WPL (Waiting Period Law) is a minor burden on the Second Amendment, [but] plaintiffs are correct that this is a tacit acknowledgement that a protected Second Amendment right is burdened.”
So in arguing in defense of the law, the AG said it was a minor burden, which is an admission that it's a BURDEN. Sounds like they didn't think that through.