Went to EM's lube shop for oil change and was asked they could check my air filter. The technician wedged the air filter housing apart vertically snapping of the fastening tabs on the back of the housing-very large noise as the tabs broke that was loud enough for the other technicians in the shop to hear and all look over. I then asked if anything had broken and the technician lagughed and said not at all. Technician then pulled the air filter out dragging it through the broke housing thropugh the gap created. This could all be seen easily through the large opening between my hood and rest of the truck. He shoed me the air filter and said yes go ahead and replace it. He then had to pry the housing apart more and there was one more snap as the last tab broke and he pushed the filter in the gap and closed the snaps on the front. This left the back of the housing wide open and the filter not doing anything since air would pass now into the motor without going through the filter. I then proceeded to work and on arrival opened my hood and instpected the damage. I then followed the 7 word instructions on front of the airfilter housing to remove it from the motor to open it. Instructions in bold say "remove housing from motor before replacing filter" This was all done with no tools and just my fingers. There is one hose clamp to remove but it was only finger tight. I had watch him loosen it but then proceed to not remove housing and just rip it appart instead. I remove the housing properly and opened it in manner of proper replacement in under 20 seconds.
I then took the housing back to EM's lube shop and showed it to the technicial who first said he had remove the housing from the motor, then said he did not think anything was broken at which time I stated "but the whole back of the housing was open when you were done!". The owner of EMs then said your getting a new housing so I should shut my mouth". And then told me I was a difficult customer and I could take my business elsewhere.