Funded proposals work because you get a customer first and build trust. I learned very early on that people don't join Pre-paid legal by itself, they join me. People join leaders in MLM. People want money and success, but more importantly people want mentors and friends. A sales and marketing system that coaches and converts prospects into sales is a very powerful motivator for prospects to join your team.
Getting window tint laws on your windows is not at all difficult. In fact, if you intend to save a little bit of money, I would recommend going the DIY way. Most hardware stores stock large rolls of tinted film and all you need to do is buy it, cut it up to the right size and paste it on your windows. Since tinted film usually comes with one sided adhesive, even this last bit is not difficult.

First, the legal notices can inform your readers of what they can or can't do with your material. Based on what you say, you can inform your readers if they can share it with other people, you can let them know if they have 'resell rights', or you can let them know whatever you want.
Another option is to add a strip of tint at the top of the windshield. This can really help with glare and other things that will bother sensitive eyes. You can see the traffic lights better when you are looking directly into the sun. This can be a safety improvement too since you are not squinting trying to see if the light is red or green.
Curtains and percent window tint block all three types of light. However, some special glasses can block out one spectrum and let the others through. Think of it like a mosquito net: the glass blocks out the pesky UV rays while still letting in the light you do want.
Use a squeegee to scrape off the remaining adhesives as well as tint. You can also use your razor blade but be careful not to cut yourself or damage your car's window when doing it.