Maybe. Store security can detain suspected shoplifters. Whether the force used was unreasonable requires further analysis and the complete facts....

Did you do all of this without a lawyer representing you? If so, that is very unfortunate but you will just have to find a local business attorney...

What can i do?

All of this is something you should easily be able to find out from your insurance company. Start there.

Help to find out what to do about a vehicle?

Maybe you should, maybe you should not. We are not auto repair experts (let alone who have inspected your vehicle) so we cannot opine on whether...

Were they wrong?

I am not sure what you are asking. But none of us can do a complete investigation of your situation based on a couple paragraphs of information....

Can I sue to get my money back for misrepresentation?

Yes, I think you have a good case. Unclear why you never looked at the odometer but the advertisement and lack of smog should be sufficient.

I didn’t mention CCP 3294 specifically in my complaint when asking for punitive damages- should I amend?

It is usually not necessary to cite the specific statute but no attorney is going to tell you one way or the other how exactly to draft a lawsuit...

What actions can i take against my landlord?

That’s how changing the locks works in landlord tenant parlance. You do not literally replace the entire locking mechanism you just re-key it.

Any liability about providing free advice - to group of 50,000 friends on say Facebook? (disclaimer parsed) - make sens? 1/2 og

Anytime you are providing “advice” it is something offered to be relied upon. There is nothing wrong with bantering around with your friends and...

I think you do. You should at least try first.