Hi. Aloe Vera cannot sustain freezing temps. If only the leaves got frost bitten the roots will recover. Take off the damaged leaves and concerve whatever gel you can get from them asap. That will be fine. Now for the plant
(s). As soon as you can take some offsets indoors to save the plants
against future deeper frosts. For those that remian outdoors, mulch deeply to protect them against deeper frosts. Unfrozen roots will regrow. Frozen roots have died. My best to you. This winter is undoubetly weird. Here, in zone
4/5 NY, we've had frost, but not 24 hours below freezing. This just isn't right!