It wouldn't withstand Constitutional scrutiny. Obstruction laws have.
"All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside."
She was convicted of obstruction.
What is unclear is (not described by the news, court or you) the details of how was this lady obstructing the officer.
The FACT is that she was far enough away from the scene that the officer had to use a megaphone to order her inside her house, so that precludes physical obstruction.
So, I ask you, since you are defending this conviction, what are the details of her obstruction.
Would you enjoy rounding up the rotkopfs or would you just round them up without enjoying it?