IP,
Just out of curiousity, did AA testify under oath that you checked in late? What evidence did they present?
I wonder if AA would go so far as to perjure themselves for $400.
Also, from what I understand if you brought the case in Texas, you can ask for treble damages up to $3,000 if you can prove that the other party acted in bad faith or with criminal intent (fraud).
A few years ago some kids vandalized my house.They were caught by the police and afterwards I sued their parents jointly and severally in justice court and was awarded treble damages. The JP really tore into them, I wonder if your could have persuaded your local JP to teach AA a lesson.
jh