If has been weeks, call the Listing agent, or the Broken and be firm.
You can certainly take it down and set it next to your garage; but that may give you ownership of the sign when the company come by to pick it up and don't see it.
Good luck and may God bless
So it is up to the new owner to decide what to do with the sign.... New owners normally take down the sign, put it down near the curb for the agent to pick it up.
The for sale sign should be removed by the listing agent since the home sale was settled/completed and you are the new owner of the property.
You may want to call the listing agent to have it picked up asap.
You can remove the sign and keep it with you for the listing agent to pickup.
I would agree that if you are the buyer of a home and the sign has not been picked up, call the listing agent and ask that it be removed immediately. If you are able, remove it if you are able and place by your garage for pick up.
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