UPDATE: According to another report, Hall didn't pay too much child support - he caught up on back-payments that he claims he didn't know he owed as soon as he found out about them. At the above link we read:
When Hall and his unidentified ex-wife were in Judge Lisa Millard's court last November, Hall didn't owe anything.
"Opposing counsel testified twice that he's all paid up," Elam told the news station. [...]
In the video above, they note that the judge said Hall walked out of court after being held in contempt - not that he was held in contempt because he walked out.
Thus, it still appears, as of now, to be rather unjust.