A neighbor was recently followed home by a white SUV, and the comments on Nextdoor were all over the place. I think there are several angles to consider here, even though most of the people commenting were fairly single-minded in how they saw the situation.
Call the Police
Most reactions were that of calling the police. This was 1:30 in the morning, and a man was being followed all the way to his home, and when the man turned away, he was also followed right up to the point he entered a 24-hour gas station. One comment was to call the police while being followed. That's good advice, so long as you weren't drinking at your friend's house until 1:30, which I have to assume was the case. When the police show up to help you out, the white SUV will be long gone, and you'll be asked to exit the vehicle for a little test.
Back in Milwaukee, my car got broken into while I was at a friend's house. We yelled at the kids as they tried to hotwire the car, and then called the police as they ran away. We'd been drinking a little bit, so it was surprising that the cops got the car fully hotwired for me and sent me on my way, broken back window and all. That was 20 years ago and in Milwaukee (Beer Capital of America). I don't expect any breaks like this in Jacksonville, so my advice would be to do exactly what this guy did if you've had a couple of drinks.
Ask The Police
Another theory is that the car was an undercover police car "running tags." These folks suggested the man call the police and ask. The problem is that since following someone around and running the tags is probably illegal, even if that was happening, I doubt it would be confirmed. Therefore, asking the police would not get a definitive answer.
I've personally seen this happen, back in suburban Milwaukee. Cruisers would be at a stop light behind a car and on a laptop. Even though it was considered to be against the rules, it probably happened all the time when those computers were first installed. I think this behavior has been cracked down on to some extent, but an officer might still follow a car with a broken tail light just to see if the driver seems to be swaying around in his lanes, especially at 1:30am.
One neighbor, to the consternation of most other neighbors, said that there was no proof the occupants of the car were up to no good. It's certainly true that no obvious crime occurred, even if most of us would consider following someone at 1:30am to be unacceptable, criminal-like behavior. If nothing else, the intent was to frighten the man. Whether it was a criminal, a cop, or a concerned citizen, when you follow someone all the way home at that hour, you want to frighten the person (or sneak up behind him). Georgia has a stalking law that might be applicable here, but I did not see one for Florida, where stalking is more about "a person who willfully, maliciously, and repeatedly follows, harasses, or cyberstalks" someone else. That means that criminals can legally stalk a dozen potential victims each day and never be breaking any law.
Man or Woman, Do This
If this kind of thing happens to you, it might seem to make sense to get home. The problem here is that you are leading someone to your house, even if they bail. They might now assume you work a late shift. Maybe they were following you to seek revenge for cutting them off, and they'll tag your garage door later on. And maybe, they'll be faster to the weapon than you.
Therefore, it's recommended that you lead them back out of your neighborhood, just like the man in the story did. Take them to a public place and call the cops. If you're a little intoxicated, maybe wake up a dozen friends and round up the posse. I'd try to get to a public place where I know there are obvious cameras mounted. Even when you get somewhere more public, it's probably not a good idea to reach for your gun or tire iron right away. At least fake dial and talk on your phone before you get out of the car. You could probably hit the old panic button on the car, too, since noise tends to ward off criminals. At least I'd do some of that stuff before I decide to escalate the situation.