If anyone is interested they dropped the "fake bomb" charge since they couldn't prove intent and she took a deal with "disorderly conduct" because it was hard to defend against (since it just requires other people to be upset by your actions with or without intent). She got 50 hours community service and had to apologise for her "crime."

Based on this interview: http://boingboing.net/2008/09/22/star-simpson-one-yea.html

She was in and out of court for a year, nobody was punished, and nothing was altered. This could and maybe will happen again.