Was the police search and marijuana possession charge lawful if I was legally parked and only approached for trespass?

Can the police make contact about a criminal trespass affidavit if I'm not trespassing? I was only there for like 5 minutes when the police pulled up and came directly to me about the affidavit. The police said it smelled like weed so he searched the car and booked me for possession of marijuana.

I was parked and the police came in and immediately cut off my car by parking directly behind me. He hopped out and knocked on my window, so I cracked my window to see why he blocked me in. He said the store has a criminal trespass affidavit and I can’t be sitting here, but I had just arrived. I tell him I just got here and I have no problem leaving. He then says, “Well it smells like weed, so can you step out of the car?” Then he searches the car and takes me to jail. There were so many other people that were there before me he didn’t approach. Charged with possession of marijuana.

Yes, after being told about the trespass affidavit he went on to search my car and found weed and he charged me with possession of marijuana.

No.

Ok just wanted some advice and opinions.

I was parked in a parking space by the store. They parked behind my vehicle and made contact about a criminal trespass affidavit. I told him I haven’t been here long at all and I was about to leave. He claimed he smelled weed which led to a search and marijuana possession charges. The business was open.

Any thoughts? There were multiple people outside that were clearly there before me. I feel I was being targeted because I got blocked in first as if someone called them on me personally, but I didn’t receive a criminal trespass afterwards.

Thanks. I read that this program doesn't allow police to approach legally parked vehicles.