You have nothing to lose by planting them now, so I'd go ahead and do it. The crocus plants may or may not leaf out this year, but even if they skip this year, they likely will survive and will leaf out and bloom next year. The other option would be to toss them in the trash which would mean giving up on them and not giving them a chance, and I'd hate for you to do that. Hopefully they remained cool (or at least not overly hot) and dry indoors and aren't moldy or soft. It is unlikely they would have enough energy stored up to keep them viable until planting time next autumn if you just keep them in storage, so that's why I suggested going ahead and planting them now.