Yes, you did. And I gave OP my opinion on the matter. Do you think making a complaint to the DOL will get her approval or denial before they need the leave? No it won't. It takes months or a year before the DOL gets to investigate (according to the website you linked to).
Q: I haven’t worked for this employer for a while. How long do I have to file a complaint?
A: The FLSA contains a two-year statute of limitations (three-years for willful violations). This means that any part of a back wage claim which was earned more than two years before a federal court lawsuit is filed may not be collectible. To ensure we can complete our investigation before the statute of limitation expires, employees should file complaints with WHD as soon as possible.

