Q.Hinoki Cypress. SE Tennessee. Freeze Over Christmas(8 Degrees 2 Nights And Under 30 A Week) Has Turned My 10-15 Yr Hinoki Brown.
Will they recover? Other shrubs/trees affected are Camellia, Ligustrum, Red Star Juniper. Most seem to be alive but lost most of their leaves.

Certified GKH Gardening Expert
Some browning is normal in hinoki cypress during the winter and it is hardy to zone 5, so I think it will be OK. The leaves will shed and should regrow. If nothing changes by about June or July, it likely did not make it.
Even 8 degrees F is included in your zone 7b, so your plants should recover. Wait till after all threats of frost have passed in spring before doing any pruning. Here is more:
https://www.gardeningknowhow.com/ornamental/trees/tgen/winter-damaged-trees-shrubs.htm
https://www.gardeningknowhow.com/ornamental/trees/false-cypress/growing-hinoki-cypress.htm