There are many options if you don't want it delivered on a specific day for some reason. I am only suggesting these because you ho sign for it. I wouldn't recommend and would actually discourage anyone to NOT sign for any package if it was sent "no signature required" as this would raise all kinds of red flags and would likely not be good.
You could contact the shipping company and ask them to deliver on a different day because you are not going to be there to sign. You can also ask them to hold it at the local office and go pick it up instead of having them deliver. This would not create any more risk if LE happens to be involved and may actually reduce it because it is very unlikely that they would post someone there 24/7 until someone tries to pick it up. They might if it were something very significant, but still very unlikely. This is how the risk would be reduced compared to an attempted delivery where it would be easier to have LE there or actually make the delivery. If they give you any hassle(if you attempt to pick it up at local office) or something just doesn't seem right, I wouldn't sign. Just tell them you forgot your ID.
I really do not understand why ANY vendor would want someone to sign, especially when they know everything may not be completely "honest". Having the receiver sign really doesn't do anything as the TN and drivers proof of delivery is "legal" proof of delivery if any dispute were to come up later. It wouldn't be 100% proof for a criminal matter, especially if they just left it at the door or mailbox(at least with a goof attorney) but it would be for a financial dispute(ie; credit card dispute). Even then it wouldn't be 100%