haha you thought I was going to say dos equis didn't you?
I prefer to drink at the house since it's cheaper and you don't have to worry about driving
it isn't against the law to drink while carrying as long as you're not intox, but say if you were to get into an car accident or worse a situation in which you're forced to protect your life, and you use deadly force. the first sign of any drinking beforehand will be used against you weither intoxicated or not and it will hurt your chances big time.