If his unemployment system is as screwed up as here in AZ he's just going to have to resign himself to sitting on hold till he gets through even if it takes a couple of hours.
Or he can visit an unemployment office and try his luck there but he's still going to have to invest several hours just to get to talk to somebody.
It's happening to everybody everywhere. If you hang up after 10 or 15 or 30 minutes you lose.