Don't try to do any of that in south Alabama...
Posted limit 65 mph (highways)
Reality more like 50
Posted limit 70 (interstates)
Reality more like 55
And hope you're at the front of the line if you come to a red light, because it takes them 3 miles to go from 0-30 mph. I bet molasses on a 0.5% grade in the dead of winter picks up speed faster than the average Alabama driver. I wish I could say I was exaggerating.
And that's both lanes when there's practically no traffic. It's actually so bad, they recently made it a law that on the Interstate, you're banned from being in the left lane at all except to pass, and even then you're only allowed to be in the left lane for something like 1 or 1.5 miles (in other words, if you're going to pass, you need to pass and get back over, no lollygagging at 0.5 mph faster than the car you're passing). Though off-interstate, Alabama still has the "slower traffic keep right" laws, but they never enforce them. The general law is, regardless of how fast you're going and what the posted limit is, you have to move right when safe to do so to allow faster traffic to pass (even if you're going over the speed limit). That's actually the bare minimum law in most states in the USA.
Mfs here are so slow and have no respect for left lane laws. Then again, Alabama does always rank in the top 10 worst drivers every year (and more often than not, they're in the top 5 worst drivers). Although, Mississippi always takes the 1 worst drivers every year.
Anyway, it even inspired one of the patches on my vest... it's a "Slower Traffic Keep Right" sign, but mirrored. The joke being it will look the right way in their rear view mirror when I am behind them, but it's small enough nobody could read it in actual driving conditions. I'm not a hooligan speed freak either, I only usually do 5 over the posted limit on an empty road/highway, otherwise I just keep with the flow of traffic.