I have had a lot of comments re drivers hours. I can only suggest you have a look on Gov.org site to see exactly what our beloved government say on the matter. If you are still having problems then have a word with your union.
As for driving over hours because of heavy traffic, well this is OK provided it doesn't happen too often, in my opinion more that once every 3 months would be too often. If it does then the schedules need looking at. Seriously.
No I don't think an overnight break of 8 and half hours is long enough but last time I looked that was the minimum.
Good luck and stay safe out there.
PS I have not been getting your comments recently but I have made an adjustment to the settings so I should get an email when anyone leaves a comment. Thanks.