Charlie Sheen's  police escort to his show in Washington, D.C. on Tuesday is under investigation by state officials after it emerged the move was not properly authorized.

The former Two and a Half Men star was running late to his one-man comedy gig after he was held up in a Los Angeles court following a custody hearing with his estranged wife Brooke Mueller.



The troubled actor faced a mad dash across the U.S. to make it to his concert on the east coast in time and revealed on his Twitter.com account that he had been given special treatment by cops upon landing at Dulles International Airport in D.C..

He wrote, "In car with police escort in front and rear! Driving like someone's about to deliver a baby! Cop car lights #Spinning!"

He also posted a picture taken from the window of the car showing the police lights up ahead.

But Sheen's blog posts have landed the officers involved in trouble with department bosses - according to local councilman Phil Mendleson, D.C. Police Chief Cathy Lanier did not grant permission for the escort.

On Friday, spokeswoman Gwendolyn Crump confirmed the department's internal affairs unit was investigating the incident. The police representative refused to comment further on the controversy.

Sheen eventually took to the stage at the D.A.R. Constitution Hall an hour late.