It's not this kind of leaf curling is it?

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No it's not. There is no wrinkling, only like the leaf is folded over. There is also no discoloration. Is that thrip damage in your photo?
Nancy

The cold could have damaged the leaves. I have varying degrees of cold damage (from no leaves at all, to no damage at all) on my roses. Most leaves shrivel and turn brown/black, especially if it gets cold all of a sudden.

Sorry, I can't get on half the time right now. That's what Chili Thrips damage looks like. They're big deals in FL and I imported my Angel Face with them here to CA. I have pics of my rose with this last April. No problems since then, but according to info they probably aren't gone. It's been in the 50's during the day here. We had a few dips to 20's at night last month though.

Chili thrips are a big deal here in Fl. they arrived about April this year and I'm still fighting them. It's been warm most of this winter. Maybe that cold snap last week got rid of them. Of course it caused other problems.
Buford, was there a problem with recovery when you had cold damage like this. The rose is still pumping out the blooms, but the leaves look weird.
Nancy

Ok, here's another pic for you of a leaf roller. This is from a catepillar.
I'm back looking on Baldo's site at leaves and damage.

http://www.sactorose.org/rosebug/

Here is a link that might be useful: {{gwi:213816}}

Actually the leaves are curling the other way, the sides rolling down instead of the end rolling down. I appreciate your help.
Nancy

Leaves rolling downward often is aphids. It would be very easy to check for aphids inside the curled leaf.

We're all just guessing without photos.

Mid 30s temps is not particularly cold for a rose, and I would not expect damage unless it were a sudden large drop in temps. We can get temps ranging from 30s to 50s in the course of a couple days without the roses minding.