Breweries and beer across country?

A friend strongly recommended Ballast Point Sculpin beer (an IPA) over the weekend. It’s brewed in or around San Diego, California.

There appear to be several package stores that sell it in Atlanta, which is good.

My question – does a small brewery bottle (can) everything themselves in California and then ship it? Or do they ship big vats of beer via rail or truck, and it gets bottled in the East somewhere?

If you have had that beer, is it any good?