It should have been out of your system for about a day now.
Each twelve ounce beer takes approximately 3 hours to leave your system. ! Beer equals 3 hours, 4 beers equals 12 hours. 6 beers equals 18 hrs. Only time will rid your body of toxins.
What type of alcohol test are they doing? A regular urine alcohol test or an ETG which can go back 80+ hours. Alcohol in a regular urine test is gone in 12-20 hours in most cases. ETG test can get you.