I feel very confident that ice isn't going to be a huge issue tonight. Even if there's a wafer-thin freezing layer at the surface, the melting layer aloft is warm and deep.
While not discussed as much as with snow, ratios are an important consideration for ice accretion as well. Torched mid-levels like this mean raindrops are hitting the ground relatively warm, and mostly running off surfaces straddling the freezing mark. So this might be 0.1" or less of radial accretion for every inch of water. It'll be slick of course, care and reasonable precautions should be taken, but we're not waking up to a thick glaze.