1998 Mystique LS Duratec
Front Disc/Rear Drum
I just had the brakes inspected as I thought I needed rear brakes. With 73000+ on the car I am still running with the original shoes. The local Ford service department (Magarino Ford/Mercury, Sussex, NJ) told me I still had plenty of wear left on the rear brakes. All they told me they did was an inspection.
However, after I got the car back, the rear brakes drums are apparently out of round as I have a shudder in the car when braking. Definitely the rear brakes.
How can an "inspection" of otherwise good, well performing brakes be screwed up from an inspecttion?
The service rep told me I could drive with it like that and cause no harm. I don't like the feeling in the back end when braking and question the control I have over the car.
Please advise on the best course of action.

Thanks in advance
Andy H. North West New Jersey