I would just leave them for a while longer. Then only prune off anything that is visibly broken. As long as the canes are not broken they should come back once it warms up.

mmmm, would be inclined to leave them too - if nothing else, the bent and damaged foliage will provide further protection over winter (although it does look a bit unsightly). The autumn clear-up is always a tricky decision time - what to leave, what to cutback.....but in general, best to err on the side of caution and simply leave old leafage and branches as an organic windbreak and stabiliser against further windrock or freezing.

Probably if you stake them up once winter is over, they will retain an upright stance and you can remove the supports later. Brrrr that ice looks cold. We had a little frost nip here and got silvery lawns and rooftops but that was all. I read about your ice storm on the Texas garden forum. I'm glad your plants were not broken.

I remember a lot of ice storms in Connecticut when everything was covered with ice and usually the power was out. The roses will be fine. The ice actually protects them. Any problems you have you will see next spring or where you are probably in February or March. Some years we had a lot of canker from freezing and thawing but not from ice.