The incident unfolded on a hectic night for Secret Service officers guarding the White House.

About 10:25 that night, a Pennsylvania woman hopped out of her car at the southeast entrance of the White House on 15th Street NW and threw a package wrapped in a green shirt at the security post. She yelled at a police officer: “It’s a bomb,” according to a police report obtained by The Post.

Police quickly secured the area with tape and called an explosives inspection team to check the package for potential explosive materials or other dangers.

But shortly before 11 p.m., the two high-ranking Secret Service agents returning from a work party at a Chinatown bar about eight blocks from the White House drove their government car through the crime scene. According to people familiar with the incident, they drove through police tape and then hit a temporary barricade, using the car to push aside some barrels. An agency official said Thursday that the car was not damaged.