Let's be PC and call it "sharing"
California is the only USA state that still allows lane sharing. Every other place in the world allows it. Makes a statement on the mentality of American drivers!
The bags are way too wide for safe lane sharing. Even the handlebars are getting there, and they are right at pickup truck mirror height. That's one reason I never considered buying an older Hyper - the mirrors add more width and I watch them for bikes coming up behind. It's safer to follow than lead...
There are some rules that can keep you safe, like watching for drivers who change lanes without signaling (the majority here, unfortunately). Watch for a shoulder drop, a head movement, or hands on the wheel movement. Of course that means you are not whipping though at 80! My limits are 25 over the slower lane, 45 max. Always stay between the number one ('fast') and number two lanes. And of course, we get to ride in the carpool lanes.
As for traffic lights, yes you can 'weasel' (oops I meant 'share') up to the front - but be ready when the light changes! The guy next to you might not wait. He did get there first, see comment on American drivers. And it's unlawful to go by on the right if there is only one lane.
I was impressed that in some countries (the UK and IOM for instance) the signal will show yellow below the red when it's almost time to go...quite useful. And I was amazed that drivers there expected all bikes to go to the front at lights.