I've no great love for pit bulls or pocupines for that matter but that poor dog is in serious trouble. Most likely they will have to put him down. I imagine there are quite a few quills in its mouth and throat. Probably blind too.
I was thinking the same thing, and wondering why they were taking pictures of him instead of putting him out of his misery.?
The quills only go in a tiny bit. It might not even hurt as bad as it looks. They sedate the dog until he's conked out, then they do an hour's work with a needle-nose pliers yanking out the quills one by one.
One veterinarian posted on his website how he treated the same dumb dog three weekends in a row that looked as bad as the dog pictured here. The dog just wouldn't give up.
I even bet the porcupine survived too. That's what they're designed for.