I know it's frustrating, but what do you feel the dealers response would be if you called right now, and just like nothing was wrong asked them if they were going to be out with your tractor today? I agree they made you promises that they aren't delivering on, but I doubt they have all their staff sitting around doing nothing and getting paid. For whatever reason, you're not getting the service you deserve, but it could be an innocent mistake.
Say "Joe" was going to deliver it after he dropped off the new tractor on Monday. He gets to that person's place, and to give them a good experience, spends longer there than he thought. That misses your delivery. He calls in sick on Tuesday, and figures someone else will be assigned to bring yours out. Everyone else is busy because they are a man down, and it gets forgotten about.
Does that let them off the hook, no. Do you deserve an apology, your bet. Is posting your frustration on this thread going to help, well maybe, but probably not at much as giving them a call.
After reading most of these posts, it sounds like a lot of people are in your shoes, and I've been there as well. I'm just thinking that a few pleasant conversations with someone at the dealership will get things solved. It doesn't even have to be the owner. Start with whoever you get along with the best, maybe its a sales person, the parts guy, or one of the mechanics. Being on the inside they will know the "politics" of the place and might just have things wrapped up today, and to your satisfaction.
The way i look at it, is no-one is out to lose a customer, friend, or neighbor. Sure the dealerships might not be owned by local guys that you see at church on Sunday, or have children are on the same football team as yours, but there are still people working there trying to earn a living that do.