NO. This will create more damage than the bird droppings have already done.
Okay, you already know the error of your ways with that paper towel suggestion. My face almost got stuck from cringing!
Wrong. They will help destroy your paint.
However, once you get it soft enough, you want to flip the dropping up onto the microfiber towel. It takes a flip of the wrist and a little practice.
That totally depends on the detail spray you're using and whether or not you allowed the wax to setup properly. When done correctly, that issue will not occur.
How old and what color is the top? Different colors and ages get different treatments for bird droppings.
You would get a detailing beat down!
Here's the deal with bird dropping. If it stays on the car for 24 hours, etching has happened. You MUST address bird dropping immediately! Not doing so can really etch the paint bad.