To be fair, even though Texas is a presumed speed limit state, the it fficer still lawfully detained him for driving over the posted limit. The gentleman could fight the ticket in court by arguing time of day as well as traffic and weather conditions, but the cop still had every right to pull him over.
Back on topic, I've had the opportunity to speak with a number of officers in the Plano/Richardson/Carrollton area and all were very nonchalant about the idea of open carry. There will almost certainly be some growing pains next year, but the onus is on those of us who will open carry to behave in a polite and civil manner to both reassure those around us that the only difference between 1995-2015 and 2016 is that they can now see the gun we were already carrying and to create a positive defense against any untoward or uninformed action by local LEO's.
Prudence will always be the name of the game when dealing with firearms. Paul probably said it best: "All things are lawful unto me, but all things are not expedient: all things are lawful for me, but I will not be brought under the power of any." Keep your attitude and your ego in check and let others lose their cool if they wish.