I think your major problem is the dealer, not the sensors. The very best way to handle this is to contact Chrysler customer service and report the dealer. Second, I would ask chrysler what to do with the sensors. Third, I would look for a new dealer to service my car. Wherever you take your car, make sure they have a certified Crossfire Tech. They are well versed on the car after going through a long course of study. They also rcve the service alerts on any Crossfire problems. Lastly, adding more air to compensate is not good. The sensors are designed to go off with a loss of 25% air. That would mean you would need to overinflate your tires by about 8 PSI That is not recommended.
Hope this helps.