Aside from your states comment CBD is something that you should be well aware of if you choose to take it that it is still not legal in every state. We're not talking about some law from 1846 that no one even knows about. We're talking about something that is quite well known these days just like legal marijuana. I've heard from many responsible users who understand the rules because they understand what they are using. Perhaps this is a person who doesn't fully understand what she is taking when she should.
It's not about knowing every law...
I think the confusion is that it's federally legal but some states have more restrictive local laws (that are dumb as hell, but the law). Lots of people would hear that it's given a federal pass and think it's settled.
The thing I keep thinking about is what a stupid, ignorant waste of tax payers money this incident caused. Were they out of real crime in FL that day? If so, maybe send some officers to help with TN's meth/opioid problem.