"Try forwarding copies of the dailies to the user quincy," huh, YAG?
RedPhase, You Are Guilty is correct that the answers to all of your questions are fact specific. There is no way any of us here can tell you if your adult film is or will be obscene, or whether there is a law or ordinance in your local area that governs the filming of pornography, or if your film could be seen as having any serious artistic merit (having a story with a plot does not necessarily make a film less obscene or more artistic).
You will need to have your script, and your filming plans and locations, and the distribution plans for your film, reviewed by an entertainment lawyer in your area. The attorney you see can give you advice that targets your specific concerns.
It is important for you to be aware of, by the way, not only the local laws and ordinances and the state laws which may restrict your filming, but also you need to be aware of the federal laws that impose requirements on ALL filmmakers who make films with sexually-explicit content that is designed for interstate distribution and sale. Filmmakers, for instance, must keep records on all performers in their films, documenting with photo-identification (passports, driver's licenses) the names (real and assumed) and ages of the actors (this even if all of the performers are adults).
Again, I suggest you sit down with an attorney in your area, prior to filming, to avoid legal risks.