Susan Finkelstein, 43, was arrested after meeting an undercover police officer responding to the advertisement in a bar.
"I didn't do anything wrong, so I'm not embarrassed about my actions. I'm embarrassed about how I was arrested," she said.
The University of Pennsylvania graduate said she had wanted to take her husband to a baseball game between her beloved Philadelphia Phillies and the New York Yankees.
The self-described "buxom blonde" said she was simply trying to score tickets online, as she had in the past.