Even my short (4 mile) commute is past a mile or so of slow-moving traffic. I passed close to 100 cars yesterday, each one to their right, none of them moved to block me and some even moved to their left to give me more room.
You get it sometimes.
Some drivers think that their testicles drop off if a cyclist passes them.
You must be older than me to remember much about that show but I don't think cars were a strong feature in 19th century Minnesota.I thought that only happened in Little House on The Prairie.
That is not the worst thing which can happen when you filter on the left.....where the worst they can do is force you into the kerb.