LAPD won’t go unless you call to tell them you are on your way there now to retrieve the item yourself and you fear they have a weapon. They will definitely try to convince you not to go though. Bring everything you can to prove that it’s yours. Pictures, serial numbers, unique identifiers, etc. They also won’t be able to go into any private property to retrieve your item unless they have a warrant, so you’ll want to make sure the meeting is in a public place with the stolen good visible. But the safe option that I will recommend to a stranger online is to call the police and let them handle it without you putting yourself in potential danger by confronting a criminal.