Question about Sawyer's permethrin spray

[paboxcall]

I tried contacting Sawyers through their web site twice, no response  - disappointing  .  Thought someone here may know the answer.

I had an unopened spray bottle still in the box from last year.  I put it in the garage for the winter, and found it partially frozen last month.  You could hear what sounded like a big ice cube floating around in the bottle.

Still good?

[SinGin]

When it comes to ticks, I'd just get some new to be on the safe side.