I keep two bikes ready, my CXB on road tires and my MTB on studs. Swap bikes as needed for weather like this. Naturally, the MTB is with me here at work today. Air the studs down to about 40psi (usually 60) and they trudge through the slushy crud just fine.
My friend down the street rides his CXB full time though, and keeps a set of studded tires on a separate wheelset. He can swap them in about a minute. That might be the way to go, although my body was thankful for the front suspension on my MTB this morning.