Dude, I just got busted. If I was in high school, I probably wouldn't care as much, but I am 32. It sucks. I am pretty sure I was wrongly charged.

Anyway, check this out:

Amendment IV

The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.

Your Right to be secure in your home was violated. This is the Fourth Amendment to the US Constitution. The Constitution is the Supreme Law of the Land. All laws made contrary to it are null and void. It is the duty of police officers to protect and defend the Constitution, and the citizens. What they did was completely illegal

If a cop ever comes to your door again, do not let them in without a warrant. They are like vampires. They cannot come in unless invited. Also, do not hold the door wide open. That way they cannot just walk in. Also do not give them probable cause by having bongs, weed or whatever in plain view. Then, they can walk right in legally, because you gave them probable cause. (I know you did not, but just a tip.)