My question involves criminal law for the state of: Louisiana
I was driving from my dads house with my g/f and brother last month with pot in the car. I needed gas so i stopped at a gas station where an unmarked cop car was sitting talking to someone. While i am getting gas they eyeball us and leave. When i'm done i take a right onto the main street and don't use my blinker b/c its 1130 on a weekday and no one was on the street. The same two cops that were at the gas station come out of a parking lot with their tires screeching, lights on and the spot light on us. They come up to the car and immediately say they can smell weed, to get out of the car etc. We had less then a gram on us which was in two bags, inside of my girlfriends small clutch and under the seat plus we were riding with the windows down. They didnt ask to search, didnt give them permission and i know they couldn't smell anything. I never smoked in the vehicle. We didnt even have anything out and ready to smoke. I asked them if we were under arrest and they said yes but all they did was give us tickets; my gf also said they didnt read her her rights.
my question is: is there anything we can do about not having probable cause bc i know they couldn't smell anything. Also if they say we're under arrest and dont read us our rights and only give us tickets is that the same thing?
any other advice or is it the cops word against ours?

