The technician didn't follow BMW procedure in a sa...

The technician didn't follow BMW procedure in a safety area, and the Service Advisor (SA) didn't pass on critical requests. They gave me $260 back after some argument with the SA and manager there. They also let me drive off with a very noisy piece of plastic dragging the ground under the car, and I had to come back to put it back on the lift to correct it. Now I need to take the car somewhere else to do the work over again. Bascially, the technician mechanic disagreed with BMW's own protocol, also disagreed with the Bentley Service Manual, and he disagreed with my own same requests to put in simple new nuts and bolts on the front suspension when replacing the Tension Strut control arms on the front suspension. These are safety items. Tension Strut bushings fail on the majority of E60 BMW 5-series and other BMW models after about 60,000 miles, a very common failure on these cars. ... I called BMW and some other dealerships and got them to read to me what procedure appears in front of any technician mechanic that cares to read it, and BMW's own procedure matches the Bentley Service Manual here, saying one needs to replace all the relatively cheap nuts & bolts with new lock-nuts and bolts. They do a lot of these repairs, since its a common vehicle with a frequent failure rate, and a technician probably just doesn't want to go get the parts, opting instead to hurry the job. Other dealerships can have all the nuts & bolts ready for this frequent service, not Schomp though.