Don't be a jerk, Bluey.

The Constitution and the Bill of Rights are a framework for our system of laws, not laws themselves and those rights are not absolute and without limits. The 1st Amendment has limitations revolving around violence and harming others, the 2nd Amendment doesn't permit me to own my own M1A1 Bradley and the 4th Amendment doesn't guarantee me such an incredible degree of privacy that the police cannot enter a commercial space, with an unlocked door wand a van parked outside that is running. No one busted down a door, you left it unlocked. You created what could appear to a reasonable person suspicious circumstances (I especially like the running van outside, I never do that It's how you find yourself without a van). After determining that nothing was happening except a little "private time" the cop left. She didn't insist on poking around or interrogate you and wasn't even interested in seeing you ID or detaining you until you could prove that you were supposed to be there.

I'm skeptical of law enforcement. It's not that I don't believe that it's a necessary part of living in society or that I think all cops are crooked, it's more that I don't trust too many people and I've had, shall we say, a colorful life that has led to a healthy reward for my privacy and my space. In order to keep LE personnel out of my life I lock doors, I follow traffic laws, I don't walk up and punch random people in the face who I feel deserve it. It's super easy! I don't leave doors unlocked because it's an invitation to entry and I don't vehicles running unattended because they vanish. If the van grew legs I'll bet that you's have screamed bloody murder and would've invited LE into your life.

So, the moral of the story is don't creat suspicious scenes and leave doors unlocked. IT seems that us with a "colorful" past know how to keep the cops out of our affairs.