Crossover day has come and gone in the Maryland state legislature; bills not passed by one of the two chambers by crossover face substantial hurdles in gaining approval.
Neither the House-side nor the Senate-side bills shifting Maryland to permanent DST (with the potential for a short-notice shift) made it out of committee.
Links to bill status below.
My guess: the bill (it's actually the same bill, cross-filed) will be back next year.-(