Its a show. I honestly dont believe anything i see on a comedy sketch show, especially one as heavily politicized as the daily show. Once again, this is not 'proof' of anything.

Im also not wrong. If you wear a suit, you will be treated better than if you wear casual/hip-hop clothes. Ive seen it myself (and with my friends white and non-white) plenty of times.

Its not just the police. Everyone has an impression of you based on how you present yourself and will treat you accordingly.

You dont need a manual, just common sense.