I'll agree with Scott on the ORH Hills and Berks. Those areas would stand the best chance in SNE of seeing frozen stuff. Still think they go over to plain rain though.
You want wintry precip, you want to root for a weak primary(>1000mb) over the GL. Allows for a strung out system that won’t scour out any cold that bleeds south from that high.
I think it’s a good thing to have heated walkways in areas where there is snow and ice like there. Makes it safer and reduces overhead on having to shovel/salt/sand it. Liability should be lower as well.