Glass ceramic coating gripping! (Safe?)

Used adams graphene ceramic coating spray advanced on my car a couple of weeks ago. I read that it was fine to use on the glass, so I did.

It was the first rainy day in SoCal today (disgustingly humid summer day lol) and it's been pouring. When using the wiper blades you can hear they are gripping to the windshield, is that okay? Newbie to all this detailing stuff and would appreciate any advice