"Post Halls". That's a simple way to combine the city name (Post Falls) with the location of the rally (City Hall). I'm positive that's what the Coeur d'Alene Press meant to do. Positive. Absolutely positive. I think. Maybe. Hey, I'm just guessing here!
Thanks to Megan's watchful eyes for catching this Spelling Disaster! *I admit to reading the entire article and not seeing it LOL*