Yep. I live in Indiana, where you cannot buy carry-out alcohol anywhere in the state on Sundays (though there's an exception for breweries/wineries... yay growler refills!) and groceries can't sell cold beer (but they can sell cold wine for some bizarre reason). There have been movements to try to get the law changed, but it turns out that the people actually lobbying to keep the status quo are the liquor stores, not religious people. They think that having to stay open for an extra day would only drive up their overhead without increasing overall sales, and obviously they love that they have a government-mandated monopoly on cold beer sales. So even though religious busybodies were probably the original supporters of "blue laws" back in the day, the reasons why they remain on the books to this day are much more economic and nuanced.

Personally I don't know how I feel about it... the libertarian in me realizes the laws are absurd on their surface, but the beer lover in me doesn't want liquor stores to face higher costs and be forced to make cuts on their craft and rare selections. It's pretty easy for the responsible drinker to just plan ahead and load up on supplies saturday. Or just go to a bar.