Case to overturn Florida law letting employees with permits to keep guns in locked cars in company parking lots

The AP reports:

The Florida Chamber of Commerce and Florida Retail Federation contend the law violates the rights of businesses to control what happens on their property. They also say it conflicts with a federal occupational safety law. . . .

The first reason seems silly. I wish that the Chamber argument was correct, but governments tell businesses how to use their property ALL THE TIME. The second reason is more troublesome, but this the entire reason that state laws are needed to offset the federal regulations that in this case endanger safety.