Cheating the Dulles Access Road: How Do the Police Know?
score:4
Accepted answer
How I presume it’s done:
There’s a camera watching the entry and exit road - or just a traffic attendant with good memory and a notebook
If a car shows up too many days in a row during peak commute hours, dispatch gets a notification and radios the license plate to a local police car
They stop the car and issue a ticket if the driver doesn’t have obvious proof of doing airport business such as as a passenger or a purchase receipt
If the driver chooses to fight it in court, they’ll now be committing perjury if they lie to the judge and most people are not willing to do that over a minor offense
Police sends out a press release where they warn people about the enforcement which scares off most people tempted to try
Do some people get away with this? Yes, probably. Does it matter for the airport authority? No, unless it becomes too much of a problem.