Some careful judge-shopping might allow the thug unions to eventually find some scumbag Democrat judge who will issue injunctions or whatever. But if I recall, the Michigan Supreme Court has mostly judges with integrity, so hopefully the union thug efforts will do little more than cost them a ton of money in wasted legal fees.
...Which, of course, is a good thing in itself because that would leave less for them to donate to the campaigns of their communist Democrat politicians.
Another problem they have with their cute little threat of retribution is that many of the legislators who voted for this are term limited and won’t be back anyway. Now they’ve got to convince people that legislators who weren’t even in office are to blame.