I'm a DIY guy, it's very good for my soul to work on/repair/improve things. If you're not the same way, then start looking for someone else to do the work. If the Mfg isn't known to be good and you Know that the dealer is a complete waste then treat it as if you have no warranty (until a big issue appears, and so long as you have receipts showing competent work, the Magnuson-Moss warranty act provides you protection from requiring a Specific entity from doing the work ~
https://en.wikipedia.org/wiki/Magnus...s_Warranty_Act ).
So, just start shopping around for someone better or think about doing it yourself. In the mean time, for the stuff you're still waiting on.... the squeaky wheel gets the grease. Be a persistent thorn, call them daily (both the dealer and the Mfg), yes it wastes your time but you Will drive them to the point of wanting to get you what's due so you stop bothering them.