I used to see this all the time when I went to London to visit family. The M25 was the same at the weekend, full of twats showing off and messing around cruising and showing off and not giving a shit about other road users.
I would use the canals & rivers or the towpaths to bug out, you can get from Southampton, London and all the way up north along these old routes and the best thing is not many people even know about them. You can buy canal map books online and you can jump off one canal and follow another, no problem.
Most counties have canals and even wales has a few.