The Secret Service can, and will, come to your door if they deem you a threat to whoever they are protecting, or to arrest you for crimes that are within their jurisdiction. However, you obviously lack the reading comprehension to even debate on the matter. I was talking about the First Amendment to the Constitution, and you go off talking about the Civil Rights act which has nothing to do with the right to protest. Also, you might want to do some research into the Secret Service. They do more than just protect the President.
Still doesn't make those who sit any less of a douchebag. Newsflash: The first amendment only protects you from federal reprisal. In other words, you won't have to worry about the FBI, Secret Service, or any other federal enforcement agency showing up at your door, and arresting you for protesting or criticizing the federal government by way of speech or in writing. That's it. It doesn't protect you from those who would call you out. Are you seriously so narcissistic to think that it is only your opinion that matters? Give me a break...