I live in MD and was wondering what are the ramifications of leaving a soaker hose out in the winter?

It is lying on top of clay soil covered with mulch. I have heard that water left in hose would freeze and expand holes making future water distribution less uniform.

If I drain the hose and leave it in my shed is there any other type of damage the low temperatures would do to the rubber?

I'd rather not have to pull it up in the first place so is there any way to drain it while it is still under the mulch?