Yeah you have to pay by check to the driver.
I remember my order from Spence was a huge hassle. UPS wouldn't deliver the package to my work and their hold for pickup locations are useless. Closes at 5pm M-F and closed weekends, so it was pretty much impossible for anyone with a regular job to get a package from UPS that required a signature or duties payment. Ended up asking my neighbor to wait in my house for them.