I managed yesterday night, having only to walk a few stretches of impassable trail.
This morning was worse, not better, with really hard, rutted ice, a headwind, trails still unplowed, and loose snow. But it was daylight, so riding in the street was an ok option. But I was out of my comfort zone, and not in a good way.
This evening was better, except for some stretches of city street that had been polished so well, and frozen so hard, that my 2000-mile old studs didn't quite bite hard enough, and I have a nice bruise on my elbow to show for it.
Tomorrow I'll drive. This weekend I'll put on the new studded tires. When the streets are a bit cleaner, I'll be back at it.
As Harry Callahan says, "A man's got to know his limitations."
Kudos to you for knowing them sooner than I did.