Yeah, that a big fear of mine--having the delivery driver just drop it off at the curb in the middle of a thunderstorm or 6 inches of snow. So if I'm taking delivery at "the curb" I'll have a few twenties on me in the hope that it will be a sufficient inducement to get the thing from the curb to my garage.
The last few big items I have bought I had delivered to the Rock-Craft store. That way I have some flexibility to pick my weather window, and then I've rented a lift gate truck and pallet jack(s). That adds some cost, but a lot of times you don't have to pay for shipping to the store.
My SawStop was bought used and I ended up having to hire movers to get it out of the seller's basement and into mine.
If your looking at a new Grizzly it might make sense to rent your own lift gate and go get it. Don't they have a store in Missouri?