Okay....just to stir this up a bit more - someone with more smarts than me explain this:
If you have to have "probable cause" to check to see if someone has a license while they're driving, then why wouldn't the same hold true for stopping someone that's open carrying if the law allows them to do so? Either one requires a license in order to exercise the act.
I don't want to know what SHOULD be, or why it's "wrong" - I'm dealing with the potential realities as the proposed law would create.
Because carrying a handgun is illegal. Driving a car is not illegal. It's true that driving a car without a DL is illegal, but the DL does not give you an exemption to a law. CHL, LE ID, hunting etc.. gives you an exemption to 46.02.
So... a cop sees someone carrying a handgun (off their premises etc): crime!, now he can stop to see if they meet an exemption.
Someone driving a vehicle... maybe a crime, but he has to investigate further to find evidence of a specific violation before he can make a legal stop.