No, you are not being impatient, but you do owe them one more chance, because stuff happens, this is where you live (offseason) and I don't think online sources will let you just have a saddle to check out. They should sort it all Monday and have it for you this coming Friday.
The world has been spoiled and a little wrecked by Amazon, et al, and brick and mortar stores provide service-they also take some time off at holidays and the offseason-don't hold this against them. One more week, one more chance. You could just as easily have gotten a defective product ordering online.