Sorry you are having a rough day
Sugar had a barking problem up until a few weeks ago. I noticed she would "start" at certain noises and decided to play on that
I had heard the pennies in a can method but didn't have an empty can yet and I was desperate! I picked up my motrin bottle (half full) and shook it 2x firmly. She ran off
I have had to do this about a dozen times over the last few weeks in total!
I even keep one in the garage and shake it through the closed door if she barks at me cuz she's mad I'm leaving!
No idea if this will work for your crew....but it doesn't cost a thing to give it a try