So pathetic 
Some Cdn models have been delivered with the filter loose & needs to be installed by the dealer. Some times the filter is installed & needs to be checked by the dealer it is oiled.
Regardless the PDI is clear the dealer is to install &/or check.
This is an area where we separate a product such as BRP vs CFMOTO. BRP would not take the chance a dealer would not follow PDI, CFMOTO & CMI has placed faith the dealer will follow procedure.
My suggestion is that you contact CMI & your dealer via email with photo's, not one or the other.
On top of that, I paid an extra $200 for PDI lol.
I bought 2x 2018 Zforce 500s back to back. The first one (this one) from Dealer A, whom I did not like doing business with. That one came with the cargo netting and door netting in a box along with the manual. I got my second one from Dealer B because the sales person was much more personable and was willing to work with me a bit more. That unit came fully assembled with the cargo netting, door netting, AND an air filter. I would like dealer B to handle the issue with CFMoto if possible because I do not trust dealer A, even more at this point. I've already left my info with CFMoto regardless.
My biggest issue is that I was already unsure about reliability and longevity with CFMoto because they are still relatively unknown to me (among other reasons). I was willing to give them a shot, primarily because I planned on treating it good (hence the early maintenance). Now with this, I don't trust it. There was clearly dirt and mud in the airbox. I noticed that the engine has a small stutter compared to my other identical unit as well, when idling.
I use my machines ice fishing, plowing, trail riding in deep woods, etc, and I need to be able to rely on it. I really hope there are some options on the table.