Some of you may remember the hysterical claims of how Lubbock was going to go to hell if it allowed alcohol sales. That was about five years ago, and in almost all categories alcohol problems are down. Most notably, It turned out making alcohol more convenient led to LESS drinking and driving.
For the first couple of years, DWIs went dramatically down. This is just plain common sense. If somebody only has a short drive for a six pack, they're less likely to get drunk while on the road (duh!).