I just received a TPW of 11/16/15 for my 2016 LTZ Limited. Does anyone know if 4-8 weeks means from that date? or is it from the date the order was placed by the dealer? Also if i wanted to try and get Tints thrown into my deal. When would i have to start negotiating something like that? it wasn't part of the options when i was building the car. Sorry im new at this.