I misread a post. If you're getting nowhere, then what do you do? If it's a simple miscommunication a letter from a lawyer could clear things up. In this case, it appears they were at an impass. The shop threatened a mechanics lean I'd guess as a scare tactic because they never acted on it, so they threw the 1st punch. If they were certain they had authorization to proceed with the truck a letter from a lawyer shouldn't bother them, especially if it was just to get the status of the truck and/or to see if something can be worked out regarding the repairs. It's not much different than if a shop had your machine for month's and nothing was bring done even when it was authorized. When 2 sides can't work things out a lawyer can often get both sides stories and then determine what might be a way to resolve the issues. Some people don't like confrontation or know how to deal with it. A friendly letter from a lawyer won't hurt. How the other party responds can often be a good indicator if they might be in the wrong or if they are in the right. If they respond back basically telling the lawyer off, there's a good chance they screwed up. If they respond back respectfully, stating everything that transpired and have evidence to back it up, maybe they aren't the ones in the wrong. There are many instances where people feel they were overcharged or they feel extra work was done that wasn't needed. They make up some story and go to a lawyer. Lawyer initially believes them but after getting all the facts, realizes it was just somebody thinking they were charged too much. A letter from a lawyer can clear things up when the 2 parties are at odds. It doesn't hurt if it's done right.