GOMG
Note that I said "sometimes."
In my opinion you couldn't do any more than you did and she deserved to be met by the police, although what action they would take is another matter.
The worst thing I saw recently (3 weeks ago) was a young female pax telling the purser to f**k off"when he asked her to raise the sunblind for takeoff.
Apparently the sun was shining in her face.
I give the purser 10/10 for informing her that she would be offloaded and met by the airport police if she did not comply in 5 seconds.
You would be surprised by how many of us pax are on your side and will support you when you take this type of action, since we realize that the ANO and your SOPs are for our safety, which is eroded if people choose not to comply.
Finally please note that I used a positive example in my previous post, I was not attacking most FAs, who do a professional ljob.