We just watched "Marathon Man" a few weeks ago, and the situation with plants reminds me of the line "Is it safe?" Well, it's not safe today, but could be tomorrow - and certainly by Monday. Tonight is going to be a cold one, though. The impact on timing is yet to be determined - but there is nothing wrong with letting the recently separated, somewhat shocked, adjusting seedlings have a few days in the cozy garage.
Latest date estimate on plant readiness remains mid April - but lots will depend upon day (and even more important, night time temps - seedlings seem to really advance when we get some mild overnight temps). I will get some pics posted later on today. But I am at am impasse - no more transplanting until I have some room to put the finished flats!