Winter's Leftovers

It's cold out again, but I choose to believe that this winter has breathed its last upon us. Meanwhile, there are still a few space savers scattered around, though they are not being actively used at this point.

This is by far the most interesting object I saw used as a space saver in our neighborhood this winter:

No sign of its sibling, or the device to which it once belonged. How long will it sit on this curb before someone disposes of it, or reclaims it?