Take the trailer to Discount Tire?

[BlueThunder34]

So after reading all of the horror stories about the Trailer King tires I have decided to invest in a little insurance and safety and ordered the Carlisle HD tires for our new Cougar and they are scheduled to be installed on Saturday before our trip the following Monday. My question is, is it best just to take the trailer down to DT and let them take the tires off the trailer (this location does have a large parking area), or would it be better to take the wheels off myself and just take those to them? I can always call and ask them but looking to hear what others have done. Thanks