nightmare. Has happened to me in the past too. Although you quickly learn from your mistakes when it’s 65 a pop!
Well… No more fines when I got home last night but touch wood there arnt anymore when I get in tonight… fingers crossed!
Constantly looking at bus lane signs now… 
Know it well… As soon as you get to the side street on the left it’s back to allowing bikes, it does seem ridiculous though doesn’t it!
Dam I go that way every day… need to be careful here too…
Made an effort to look this morning and spotted that 50 Meters. Nearly got taken out by a scooter this morning cutting across me to use this part of the bus lane!
Thanks for the heads up!