I'd go with Randy's advice first - if you don't hear the impact of the wax residue, then I wouldn't mess with it.
If you do, then you can try a hairdryer on the dried wax to gently heat it. Keep it far enough away so that the heating process is very gradual, and then pat it away with a wash cloth (something that will not leave cloth/paper residue behind when it comes in contact with the warm wax).
My strong preference would be not to mess with it at all, but if it is causing problems, that's one method to consider for getting it off (just don't melt your cones!).
Jason
