I grew up in Massachusetts so I got used to the Blue Laws - no liquor sales on Sunday, only sold in liquor stores, etc. They've relaxed a bit - I think liquor stores are able to be open on Sunday around Christmas time, but a lot of people around where I was from still go up to New Hampshire to buy beer on Sunday.
I get to California and you can even buy liquor at the supermarket! What a concept. Only problem is, when we go back to Mass. to visit we forget sometimes and get caught dry...
Oh, and congrats on finding beer! It could be worse - you could be in Utah...