Any supposed AW dealer should know better, and will likely be conservative. Ask for their license number, and/or paperwork.
The dealer must ship for you, must track that it was taken in for shipping, etc. The DOJ website, and regs are quite clear about this. Additionally, what is not clear, but is presumed due to the requirements on the website, only a licensed AW dealer or his -DOJ approved- employees may take in the rifle. They should also check -your- paperwork, as they can lose their license to take in an AW that has no paperwork.
Any gunsmith can do repairs while you wait, but only a licensed AW dealer may take the gun in for repairs if you are not going to wait. If you take your gun to a local non-AW dealer, do not step out to lunch, don't run errands, get gas, whatever... STAY with the gun.
Also, I gotta ask, what are you doing to the gun that you can't get done locally? Seriously, what do you trust someone in another state far away to do to your $1500 rifle (price based on value at the end of 2000 in the PRK), that you can't trust your local guys to do?