I repeatedly drive a similar route for work/school run. There are two inevitable tailbacks (at least 10 minutes in each, every time, mostly stationary). One at a set of traffic lights, one before a very slow junction. A man on a bike clearly does the same route as I do. Every day, he rides up the side of each traffic jam, looking through all the drivers' windows... and when he sees someone on their phone, he'll bang on their window and gesticulate in a really sneery, condescending way. He wears a suit and just looks like he thinks he's the dog's bollocks. I don't use my phone in the queues, but tbh I wouldn't really judge someone for carefully glancing at theirs whilst in such a massive tailback.
I think this man is a nob and hypocrite (why aren't HIS eyes on the road, rather than looking through all the car windows?). DH says he's reasonable, and doing a public service. AIBU?