passenger airbag deactivation kit 05 boxster

[mach schnell]

Wondering if anyone can shed some light on this - I just purchased an 05 Boxster as left over inventory from a soCal dealer and had the passenger airbag deactivation kit installed. Had searched the web before hand to learn about the kit and found a variety of opinions, experiences, etc. And, of course, even got conflicting info from 2 different local Porsche dealers before having installed. I was under the impression that labor was included in the purchase of the kit - however, the majority of the almost $600 i paid was labor. Did I get shafted? Anyone have it buy it and have it installed in soCal and only pay for parts? Thanks.