There is no such thing as a traffic ticket for a moving violation being issued as "no points, no school". Unfortunately, cops on the road seem to be telling people that they can get no points by paying a citation. That is not true. (They give other misadvice too, see my blog on Bradford County Traffic Tickets). Paying a citation without talking to a lawyer first is the worst thing that you can do. This is because it is a plea of guilty, an admission to the offense, points will be assessed to your license, your insurance may increase and your guilty plea could be used against you later even if your guilty plea cannot be entered into evidence in another court proceeding. Entering a guilty plea by paying an infraction can be disastrous if you are accused of driving on a suspended license.
Roadblocks or "Roadside Safety Checkpoints" as they are referred to by law enforcement are legal only if the police follow the rules. Yes, the Constitution does still apply as do the laws of the State of Florida, even though it certainly does not feel like it or a particular law enforcement officer's god complex has raised its ugly head. In order to be legal, they have to have followed several steps including publishing an operational plan, communicating the plan and then actually complying with the operational plan.
The Florida Move Over Law requires that a driver move over or slow down to 20 miles per hour under the speed limit when approaching an authorized emergency vehicle that is using any visual signals and is parked on the side of the road, or a wrecker displaying amber or flashing lights that is performing a recovery or loading on the roadside, or sanitation vehcile peforming its function.