Getting high before you drive could get you arrested for driving under the influence (DUI). This is still true even though marijuana is legal for adults. If you are high, you should not drive, bike, or operate machinery. You can be issued a DUI if you drive after smoking weed in Alaska. If stopped by an officer, and obviously impaired, the officer will give you a breathalyzer test, if this reads, you have negative results then they would get a warrant for a blood test and take you to the magistrate.