So I say to you I received a call that there was suspicious activity involving your car and would like to check. What do you reply?
Who the **** are you?
Is that what you say? Then you don't know the law. It works both ways for the LEOs and the citizens.
I dont know what law? There is no law that says I have to answer some random guys question. What are you talking about?
It's not some random guy, but a leo. The law does not work just for the guilty. It works for all parties, the guilty, innocent and the leo. In this case, it's probable cause, so the office does not need a warrant to search. If you want to argue, then the officer impounds your car and escorts you to the police station for questioning. In the victim's shoes, I would ask what the call was about and am I under suspicion or arrest?
If the officer stops you for a traffic stop and asks to check the back of your trunk because they smell marijuana. What do you say then?