Thanks man! We want to just end this as well.

So here is the scoop of this morning. My mother came to my house last night, she has 2 day conference today and tomorrow at the nearby convention center and is using our driveway to park her van. She hadn't left for the day yet, and she actually went out to talk to the painters before my wife had a chance to get the baby ready and go out there. I didn't sign up to have my mom fight my battles, but that is the way it turned out this morning.

In short, the painters told my mom to move her van. My mom said she couldn't because she didn't have a street parking permit and was leaving for her conference. The painters then told her to go park in a parking ramp downtown. Well, even the painters knew that paying $20 to hold your vehicle far away is asking the ridiculous, so we already hit our impasse.
My mom then pointed out the fundamental communication problem, that how other than a note on the windshield, the neighbors have not spoken to us at all. The painter did a double take at that. According to the painter, he was told by the neighbors that they already spoke with us and we agreed to let them use our driveway even before they started.
Now that the painters suddenly understood the situation, that they had been lied to from day 1 by the neighbors. The guy was pretty pissed at our neighbors and said he is calling the job done until the neighbors talk to us.
So the painters packed up and shipped out. We will see if the neighbors will finally come and talk to us now. If they plan on having the rest of their house painted, they will.
Meanwhile, I am setting the moldy bagel threat level to orange.