Apparently Target has a return policy that has loops and holes that are known only to their own employees. You as the customer, find these "unknown" rules only when you attempt to return an item or items to their stores..
Yes, one should always ask about a stores's return policies. Target has their return policy clearly posted at their CS desk. However, what it doesn't say is that their are quite a few loopholes that they will use to stop you from getting your money back or a refund of any sort. Somehow, Target will attempt to put a wall between their customer and themselves. Again, another corporate giant that forgot it was the customer that has made them who they are today.
When you return something at a Target store, and you are denied, you have the right to ask the manager to review their video recording of that day/hour/register of when you purchased the item if they question if the item is theirs or if it belongs to you at all.
Also, report this to your state's weights and measures.