No, the statement is correct. This is a FEDERAL law that no state can make a law to change.

If you would look at the Federal laws, it is PL 108-277. The short of it is the leading of the text,Notwithstanding any other provision of the law of any State or any political subdivision thereof, an individual who is a qualified law enforcement officer and who is carrying the identification required by subsection (d) may carry a concealed firearm

Here is where you can see the text:

http://thomas.loc.gov/cgi-bin/query/.../~c108u6Otih::

After it was signed by the President a couple of years ago, it became law. A current or retired officer may carry a firearm concealed anywhere federal law applies.