Just realized the original post states why this started:
"exploitative and abusive fees"
That is indeed actionable, as stated. Not the first time I see this.
Price gouging in this manner (as described above) is indeed against the law.
During the ice-storm back around 1998, I also recall someone being dragged to court because he raised the price of his firewood (logs) from 60$ per cord to 150$ per cord to take advantage of the situation to profit more.
said by mlerner:
I've just never seen a lawsuit or class action of this type so I'd like to find out what is applicable in the law
So getting back to what you said, yup this is actionable. Seen it before. But the court will have to agree with what they wrote up to allow it to get standing.