Do Louis Vuitton Manufacturers sell LV products?

Ok, basically I'm buying a purse off craigslist. I want to meet at an lv store to get it authenticated. The seller lives near costa mesa, and i live in glendale (CA). She is an hour away from me, and that is too far.The only store I could find in between us (35 min away from each of us) was in San Dimas, but it's an lv manufacturer and not a store. Do they authenticate bags? Do they sell bags, or just repair them? Is there another store in between us? Thanks.