"Your constitutional rights are..." ? How about the cop's and everybody else's natural rights?
Arrogance, and perhaps public-relations tactic aside, that was a pretty good police encounter from the police side. (I suppose it could have been a sophisticated consensual investigative encounter. For example, if the videographer had been a bit stiffer or less friendly, the cop could have escalated.)
Of course, the true test is how the cop behaves when you invoke your 4th Amendment (search and seizure) right to refuse consent to an encounter, and then refuse to talk or answer questions.