Lawn weed killer concentrate froze last winter - use it?

Factual Questions
1

I had a bottle of Ortho Concentrate Weed B Gon Lawn Weed Killer (mecoprop, 2,4-D, dicamba) and a bottle of Ortho Concentrate Weed B Gon Chickweed, Clover & Oxalis Killer in the barn all winter in temperatures down to around 10 F. These are the concentrates for preparing a mix to spray, not the solution that is ready to spray. They say do not freeze (don’t know what temperature they freeze at tho). Do I use them or replace them? If I experiment with them, any chance they will damage something?

Thanks!