Personally I would let those cuttings continue their natural dormant phase at this time of the year. Even with extra lighting and heating pads, the overall ambient temperature might still be too cold for it.
There is still hope, as long as it is kept very dry and warm, and continues to be firm to your touch all over. You can do an experiment if you wish, put two in your planned grow lighting and let the rest go into their dormancy. That way you do not lose all of them in one try. I see them being sold in some stores in the Bay Area, kept in their plastic baggie with some holes for air. They stay okay.
