Yes, canceled STS items do come out in Return to Stock. When you're goin through the RTS process, an extra prompt will come up letting you know it was a STS item, and to send it to the appropriate location for processing (which I assume is price change, because it will go to the floor as an online item).
At my store, the receiver handles STS that comes in. However, our receiver is only scheduled until 2:30-3:30, so anything that comes in after that will sit until the next morning. There are a few of us who are trained on how to receive those, but we are rarely called when they arrive. The process itself isn't difficult (practically the same as FF with 1 or 2 extra steps) but I guess they don't want a bunch of different people messing with them for now.
At my store, the receiver handles STS that comes in. However, our receiver is only scheduled until 2:30-3:30, so anything that comes in after that will sit until the next morning. There are a few of us who are trained on how to receive those, but we are rarely called when they arrive. The process itself isn't difficult (practically the same as FF with 1 or 2 extra steps) but I guess they don't want a bunch of different people messing with them for now.