You probably didn't like having your transit system held hostage on Friday night, did you? No reason you should. Here's the closest thing resembling an explanation for the snap strike that has yet been offered by Amalgamated Transit Union local president Bob Kinnear:
We knew we would be severely criticized for striking with no warning, but our first duty as a union is to protect the safety of our members. If only one member had been assaulted by a passenger angered by the impending strike, that would have been one too many.
In other words, Kinnear claims to have acted on the premise that giving advance warning of a strike would have placed his members in more danger from an outraged public than stranding hundreds of thousands of people downtown and freezing the city for a weekend did. Seems to me that (at five a.m. Monday morning) it's still an open question whether he was right or wrong, and there exists a corresponding question of incentives. If you prove him right, you'll confirm that the strike was your fault—you're a boorish, dangerous mob that needed a weekend to cool off from your entirely unjustified anger!—and you'll leave the same line of argument open to himself and his successors. Is this how you intend to let yourselves be treated?