Read this case

Reginald Black, whose driver's license was revoked, asked his neighbor, William Smith, to run some errands for Reginald. William, in his late twenties, enjoyed helping out his neighbor. William's car was being fixed and was not available for him to use so Reginald permitted William to use Reginald's car. On his way back from the errands, William was pulled over by Officer White. Officer White has an automated device in his patrol car that scans car license plates to gain information about vehicles. White's device pulled up the information on Black's car, indicating that Black's driver's license was revoked. The device also showed that Black was in his sixties and Black's picture showed that Black was, in fact, black. As the officer started to walk from his patrol car to the car William was driving, Officer White determined that the driver appeared to be Reginald Black because the driver was black. However, as White neared the car, he had a little doubt in his mind that the driver was Reginald Black because the driver seemed to be younger than Officer White was anticipating. As the officer approached the car, William rolled down the window and the officer asked whether William knew why he had been stopped. William said that he had no idea why he had been stopped because, to his knowledge, he had not been speeding or committing any other traffic violation. Officer White told William that the registered owner of the car had had his driver's license revoked and asked for William's driver's license. When William handed over his driver's license, he explained that he was driving his neighbor's car. Officer White returned to the patrol car to check to determine if there were any outstanding warrants for William, whether William's license was in good standing, and whether Black's car had been reported stolen. Officer White found no problems indicated by his computer search and went back to the car to return the license to William. As the officer was returning the driver's license, the officer caught the glint of something metallic stuck down between the front seats. Fearing that the driver had a gun, Officer White ordered the driver to put his hands on the wheel and asked William whether he had a gun. When William answered that there was a gun in the car, Officer White asked whether the gun was William's and whether it was registered. William admitted that the gun was his and it was registered. Officer White asked William to exit the car slowly. After William got out of the car, the officer determined that there was a gun in a holster stuck down between the two front seats. The holster did not come equipped with any safety strap so that the gun could be snapped into the holster. The officer arrested William Smith, telling him that the gun violated the Florida Statutes because the gun was not securely encased.

then compare it to Kansas v. Glover

heres the link - https://www.supremecourt.gov/opinions/19pdf/18-556_e1pf.pdf