Woman known for trying to sneak on planes freed after jail time for latest stowaway attempts

A woman who has repeatedly tried to sneak aboard airplanes around the country has been released from the Cook County Jail in Chicago.

Sixty-three-year-old Marilyn Hartman told reporters outside that she felt "free as a bird."

Hartman was arrested after trying several times to get past security at O'Hare and Midway airports in April and May.

Hartman has tried numerous times in recent years to board flights without a ticket. She has succeeded at least once, getting on a Southwest Airlines plane and flying from San Jose to Los Angeles last August.

She pleaded guilty this week to misdemeanor criminal trespassing on state land and was released Thursday after nearly two months in jail.

Speaking to reporters, she explained her behavior by saying, "Even smart people do stupid things."