Unfortunately that shop didn’t do you any favors. They should have checked your front end parts prior to alignment. Unfortunately this alignment is junk and you need to replace the ball joints and then have the alignment re done. Maybe you could talk to the manager and ask for another no charge alignment since they missed something pretty big?
I'm going to agree with the above here. Ball joints don't just 'go bad' in 30 days unless you are doing some serious work, hard city driving or wheeling every weekend or lots of weight. Under normal driving conditions they don't 'go bad' that quickly unless you break them off. Which means your previous alignment that's 30 days old was likely done with an already-bad ball joint, and replacing the bad one likely won't put you back to that alignment spec.
It's always a good idea to get an alignment done WHENEVER you replace suspension components that could alter the alignment. Granted on a SFA there's less that could cause an issue, but I always recommend it. You're dealing with tapered shafts, they don't always go back where you expect them to.