years ago, at a local shop by me, had same experience, rude, arrogant people, like pulling up in a pickup at a Caddy dealer, they just don't care.
Brought my ol trusty Sunfire 300 *at the time"
hooked up to snell, B and W, klipsch, etc, brought a few cds ( i had already been to the shop, and felt the ice on my baBrought a Exit 13 CD with me "ethos music"
played a few songs, asked for some volume , next song was "An Electronic Fugue For The Imminent Demise of Planet Earth" which is a full pure max volume of just noise (do not play loud) search it, and imagine the open jaw when this tune started with a high volume on their speakers.