I recently drove through Minnesota and was pulled over by an officer who told me that wearing earbuds in both ears while driving was illegal in that state (although apparently one ear is allowed). I had no idea about this, since the majority of US states do not have any such law. The officer kindly let me off with a warning, which I appreciated.
I see that there is value in this particular law and I don't want to debate it, but I'd like to avoid this sort of surprise in the future. Is there any way that I can find out about unique traffic laws in various states that I will be driving through?
To be clear, I'm not specifically asking about wearing earbuds while driving (I have found a list of headphone/earbud traffic laws in various states). I don't want to be surprised to drive through a state and get pulled over for some traffic law I didn't know exists. For instance, if I were to drive through Minnesota again, I'd love to find a list that tells me that having earbuds in while driving, and whatever else I wouldn't necessarily think of, is illegal before I drive through Minnesota.
So is there a way to find out about unique traffic laws in the US states I'm traveling through?