FHP (Florida Highway Patrol) and JSO (Jacksonville Sheriff’s Office) run radar quite frequently esp. Northbound as you enter Jacksonville. They like to have Motorcyle Patrols and have seen them pull over 3 or 4 cars at a time. Speed limit northbound from St. Johns County changes from 65 mph to 55 mph as you enter Duval County/Jacksonville then 45 mph as you approach Bayard. The area is very open and overall rural between Bayard and St. Augustine. Speeds tend to be much higher than 45 mph. Another weird scenario is that further north toward Avenues Mall with much heavier traffic the speed limit raises to 55 mph.