Well, the basis of the police's charges against her is that she has caused some sort of traffic disorder, am I right?
Well, then, that is true since 8000 fans did follow her around and causing like real big road destruction...
But again, we're not Ayu, neither are we in her management team, so we don't know how they operate and all that.
What I see now, is that Ayu went for the event and all that because she trusted her management and knew they would settle things for her (which is their job, btw)... but apparently they suck and are incompetent, which leads us to this.
All I can say is that Ayu is obviously at some fault here, since it's her and not say, Mama Mika (or however you call her) that created that 8000 crowd to cause traffic disorder.
But again, I don't know why the police, or rather, the media has to blow it up so big... when I don't know, it's not like someone died because of this. Sure, she's in the wrong too, but... to blow it up to such an extent? Sorry, I don't think it's really appropriate. You should know this can be easily settled with a police letter sent to avex, explaining the problem, and asking for a fine. There's really no necessity to report this in the news or whatever.
And also... her management... ugh. And I thought Shimomura was the most useless person to stick by Ayu ever.