I had about 2' foot of snow last year on mine, with no problems......but I was worried, also. I did go up and shovel it when the forecast was for another 2 footer. It actually might be worse for you to shovel the snow off, damaging the roof with a snow shovel. Plus, you gotta weigh life and limb from 12 feet up. Tough decision, but if that is all there is with no other big storms in the immediate future, I would leave it if it were me.
Chap , DW Joy, and Fur Baby Sango
2006 Ford F150 Super Cab 4x4
2008 Surveyor 263