This is a CHIRP file for the Baofeng type radios. Download CHIRP and install (available here). Save the most current "CARS.img" file to your Baofeng or other ham radio folder. Open CHIRP and then open the file.
Transmitting on any frequencies is regulated by the FCC, this includes FRS, MURS, and GMRS. The State of Florida prohibits transmitting on any frequency without authorization (The 2016 Florida Statutes 877.27 Unauthorized transmissions...). Additionally, the use of police/fire scanners in vehicles is prohibited - there are exemptions, amateur radio is one (The 2018 Florida Statutes 843.16(5)(b)(3)(a)). Know the rules.