"I said I'm sorry, I apologize and I put it away. About ten minutes into the flight I discovered I only had two nails left to paint so I thought well if I went to the bathroom and did it, it wouldn't offend anyone."I read the above to mean that she was asked to stop, and then went to finish two nails in the bathroom.
That's certainly what she told the press after being arrested, after thinking it over, and after possibly speaking with her attorney.