2point,
Not true. You can do it by mail or phone:
From DOW website:
Leftover licenses for deer, elk, pronghorn and turkey go on sale August 7 at 9:00 a.m. They will be available for purchase at license agents, through the 1(800) 244-5613 phone line, mail-order (PDF) and DOW offices on the 7th.
It's Bush's fault!!!