It would depend on if you consider her actions disruptive or the reaction to her actions disruptive.
In this article she does say sorry according to other student.
http://www.denverpost.com/nationwor...rl-who-texted-class-prompts-civil-rights-case
Tony Robinson Jr., who recorded the final moments, said it all began when the teacher asked the girl to hand over her phone during class. She refused, so he called an administrator, who summoned the officer.
"The administrator tried to get her to move and pleaded with her to get out of her seat," Robinson said. "She said she really hadn't done anything wrong. She said she took her phone out, but it was only for a quick second, you know, please, she was begging, apologetic."
"Next, the administrator called Deputy Fields in. ... He asked, 'Will you move?' And she said, 'No, I haven't done anything wrong,' " Robinson said.<<<
Geez, how can no one see that this girl was being appropriately defiant?
IMO she didn't do anything wrong that required her to give up her phone or be removed from class.
This is just a teacher who was on a power trip and lost miserably simply because he was so immature.