Outside hose bibs - no water - onside fine

Yes, the hose bib is a branch off the main. If you are getting a thin stream, let it run for a while to erode the ice buildup in the line but open and let run the next nearest faucet to reduce back pressure. If no stream then wait for it to melt, don't run.

Yep. All good now.

Re: freezing temps and hose bibs. This year I used those styrofoam faucet insulators with the hard plastic covers for my 4 outdoor spigots. Last year I wrapped all of them with shop towels and wrapped the towels with duct tape to make a waterproof mitt. It worked when we had 12 -18 degrees for 4-5 days.

I have a pier and beam house and have always dripped the outdoor spigots. This year I bought the freeze miser outdoor faucet protectors ( actually a knockoff brand of them) and they worked very well. They only drip when needed and shut off when water temps in the line reach 37 degrees. They were a bit expensive but they worked and I have them nowfor moving forward with the next freeze events.