Damage in any case is unacceptable. Our vehicles should be returned in better condition then we left them. I'd ask to speak to the owner of the dealership or find out how to get in touch with him/her and send a detailed note with documented pictures of the damage.
Short of that, I'd go in and raise hell in the showroom while there's a load of prospective customers there. Last time I was in for repair, a lady was having a heated conversation with a service advisor. After she went in to the lounge area, I politely asked her what was going on. Sometimes public outrage works and sometimes it doesn't. But we shared some horror stories and I got some valuable info!
My experience has been, fix one - break two at most dealerships, unfortunately.
Maybe Eric resurrected his long gone kinsmen: Moe, Shemp and Curly Howard as service techs!