Mont. Code Ann. § 61-8-508
Intoxicated pedestrian
61-8-508 . Intoxicated pedestrian. Except in an authorized crosswalk, a person who is under the influence of alcohol or any drug may walk or stand in the public right-of-way, as defined in 60-1-103 , but not on a roadway or a shoulder as is otherwise permissible under 61-8-506 (2).