Most states use a 0.10 definition. Any person who operates a motor vehicle in Hawaii gives his implied consent to be tested for drunk driving. Unless noted otherwise, it's okay. Motorists in Hawaii pride themselves on showing aloha spirit. Allow traffic to merge and don't angrily honk your horn.
Cyclists enjoy basically the same rights and privileges as motorists.
They are forbidden to use highways and can't travel a road when an adjacent bike path is provided. On the road, cyclists must ride single file and travel as near to the right edge as practical. They are required to obey traffic signals and other traffic laws.