hahahaha, We always get a handful of these douchebags here in Newcastle that can't do the speedlimit and my solution to this is I pretty much ride their rear bumper and bully them into doing the speedlimit.
Amen about the F3 on-ramps and getting upto 110km/h. My old man used to be a serial offender until I rode shotgun with him to Sydney once... Let's just say he got yelled at after we cut off 2 large semitrailers whilst merging onto the F3. I needed a fresh pair of panties after that.
Furthermore, I can stand people that don't indicate on motorways when changing lanes! It's not that hard!