 The system has video recording equipment that records the license weight of any car that drives past while the arm is deployed. The District Department of Transportation issued over 170 warnings during a 45-day period and just ended. Holiday travel. This Independence Day period could set records, according to the Transportation Security Administration. With that in mind, how early should you get to the airport to catch your flight? WTOP's Matt Koufax, suitcase in hand, with some suggestions.