You have to keep your gun out of sight. If someone can see your gun through your car window, that could be illegal. The law says it has to be hidden, usually in a locked container. If you are found guilty of carrying a gun openly in a public place, you could be charged under PC 26350.
Completion of form 4473 (Required by the Bureau of Alcohol, Tobacco, and Firearms). A background check completed prior to releasing the firearm.
In Florida, it is legal to have an unloaded gun in your private vehicle, provided it is securely encased or not readily accessible. Securely encased means in a glove compartment, snapped in a holster, in a gun case, or in a closed box or container.
Open carry is not legal in Florida, except for a few limited exceptions such as when engaged in fishing, camping, lawful hunting or target practice at an indoor range. Concealed carry is legal for residents with a Florida CWL and for non-residents with a CCW permit from a state that Florida honors.
Always unload and case firearms before transporting them. In many states, this may be the law. The action should be open or the gun broken down, whichever makes the firearm safest if it's mishandled. Firearms should not be displayed in window gun racks because the display may provoke anti-hunter sentiment.