OMG!
What a stupid, stupid, person she is! {edit} Clearly, she knew she was doing something bad if she felt like she should do it where there were less people to see her.
I would have asked her how in the world she knew there wouldn't be a problem these past 7 years??? Did she come back every day to check on the babies (who likely drowned or died from exposure before a predator could eat them)? Does she think it's ok to buy puppies at the pet store and just release them into the woods to fend for themselves? For the sake of the children with her I would have posed some serious questions... they need to understand that what she's doing is animal cruelty! She's not SAVING those babies from the feed store for heavens sake!
I would have asked which feed store, taken her description, her license plate and reported her to DNR. Then I would have taken those ducklings home... there's not a single person who could have talked me out of it.