Agree, a quick visual is often the best cue for a busy warehouse. Like @DavidOverholt idea, I've used a separate warehouse code and then assigned this as the item's default warehouse code. As default, easy to get a list whether in IM or PO of items that need inspection. It's also important like @WayneSchulz mentioned for the warehouse to have a visual cue, this is often a staging area taped off on the whse floor. If it's in the 'zone' it's not inspected.