They will have to worry about it but it is of their own doing now, when they choose to go on strike they better be prepared to face the people when they come back to work. In fact they made situation worse by not giving anyone notice, so if you went to bed last night thinking the strike was averted, you would really be pissed today if you had to work and take a bus because you got no notice and no time to make alternative plans.
Also I wondered why the union would try this sudden strike? It was obvious that the government would step in and force it to work, in fact the PCs and Liberals seem to be in full agreement on a back to work order.
I'm not that thick but them not giving 48 hours just makes the situation worse and makes the public even more angry at them so it does not help the situation.