There was the time American's union had $48 million in the bank, and a judge fined them $45 million.

https://www.cbsnews.com/news/pilots-union-fined-45m/

Or the injunction against United ALPA because United ALPA told pilots to fly the contract and not pick up open time:

https://www.dallasnews.com/business/airlines/2008/11/18/us-court-issues-injunction-aga

Anyone who ignores a judge's order does so at their peril.