The weather in Hawaii is a freezing 70 degrees during the morning hours with a cool tropical breeze flowing from the Windward side of the island. You may need to bring a t-shirt with you and a pair of shorts for those cold November mornings. The day-time however gets to a balmy 85 degrees.
Some freeways have fixed point to point cameras 5km apart so you can't beat them by slowing down for the camera as they will get your average speed between the two points - same deal - 3 km over, fine. Cops will pull you over in their vehicles if they detect you speeding anything over about 4kmh over the speed limit. In Australia speed fining is all about blatant government revenue raising - this despite government propaganda calling them safety cameras.
If you're going under the speed limit and someone's behind you and when they have a chance to pass, they can pass. But some states have laws that you can't go more than 10 under the limit or if there's more than 3-4 cars behind you, you're required to pull over to let them by.