I don't think it was necessarily rude at all..... it could have been that the cyclist not in the bike lane may have chosen that position regardless of whether or not he had a companion for the ride. If he was solo and still chose to not use the bike lane, would you condemn him?
Yes, I would condemn him. The town south of me did a massive road reconstruction about 2 years ago. They dug down to gravel, re-leveled, did all the sewers, etc and then built the road back up. They put in a bike lane in each direction. The road is two lanes, one north, one south and two bike lanes. This is a beautiful, new asphalt road. The bike lanes are kept free of debris. Most of us use the bike lanes. And then there are the assholes who choose to ride in the lane. You cannot pass them without pulling across the dividing line and depending on time of day this cannot always be done. Close to the speed of traffic is not the same as the speed of traffic, so often you will see a big back up of cars behind the guy who just sees himself as too good for the bike lane - yeah, it is almost always a guy. This is not just a situation where a cyclist pulled into the car lane to pass, these are guys who just ride in the car lane. To me, this is a case of being an ******* and making it harder on your fellow cyclists.
Brina
"Truth goes through three stages: first it is ridiculed; then violently opposed; finally, it’s accepted as being self-evident." Schopenhauer