Yet they will still penalize your standing for it, as if you can break in or work a couple extra hours for free to swing back around in the morning after your route ends.
Secondly, you may get a route that sends you into a crime ridden areas of the city during the middle of the night! Which almost guarantees there are going to be packages you cannot deliver. Firstly, they require you to use your own vehicle, for many miles and a lot of stop and go.