Interesting about this Saturday night thing. Here in Blue State Colorado it is always illegal to sell a beer in any retail establishment after midnight, every single night, not just Saturdays. (Bars are different, those are open until 2 AM). It was also illegal to sell any retail beer on Sundays until just recently here in Blue State Colorado (bars were always open though).
When did Colorado turn blue? It took a little while to change the laws, but they changed it. I hope they continue progressing.