I do sympathise. I was going shopping then meeting my mum for lunch. I got held up by cyclists in a group for aroubd 2 miles. If made me 38seconds late. My mum was furious. It threw the whole day out. First I was late for the shops which made no difference. Then my mum had to wait 38 seconds as I must shop for exactly 19.58 minutes and could not cut it short. Then after lunch I was 10 minutes late because I then spent 9 minutes and 22 seconds bitching about cyvlist's and posting on forums.
Honestly, 10 minutes late and 38 seconds of that was due to inconsiderate cyclists.
I will petition to have cyclists banned from the roads as its simply ridiculous to expect me to leave 38seconds earlier. Until they do I will have to , HAVE TO MIND, break the speed limit to catch up. If I end up killing someone my conscience is clear but I bet these Lycra louts will just laugh.