It is my understanding, that if an LEO believes you are impaired (drugs or alcohol) and carrying a firearm, he could take you in. Impaired, not intoxicated. Intoxicated will definitively get you a free ride. If they claim you are impaired, you may beat the rap, but would still get the free ride.....
Not illegal to have some alcohol while carrying, but not a good idea, imho...
Not illegal to have some alcohol while carrying, but not a good idea, imho...