lol time to get technical.
According to Florida Statutes
Title XXIII Chapter 316 Subsections 2952 - 2955
The Windsheild Can be tinted to AS/1 at no less than 28%
Windows directly beside the Driver are also limited to 28%
All windows behind the driver are allowed as low as 15%
A tolerance of 3% is allowed. So 25% up front is allowed but is pushin it.
http://www.flsenate.gov/statutes/
Print out the pages if the stores or cops give u hard time about the tints.