I completely understand why you don't want to allow a dealer to lay hands on your car. Here is what I would do: nothing at this point. If batteries in your TPMS sensors do discharge prematurely (normally it should be 5+ years, depending on mileage), buy the sensors yourself (last time I checked they could be found for about $100 for the set of four if you look for them), take the wheels off yourself, and bring them to a trusted tire shop of your choice. If you don't have a trusted tire shop, you better find one as you will have to replace tires fairy often. After that, try to reimburse the expenses (Dodge will probably refuse, but I would live with that). There is a very good chance that you will have to (or want to) replace your (junk) stock tires before your TPMS sensors run out of batteries, in this case just install new sensors when you install new tires. That's what I would do. A hundred bucks is not worth letting the dealership to monkey with your car if you can avoid it, in my book.
