I use these two covers together for day/night protection in most situations. Sunflexzone for Infrared blocking and ghostplate for blocking overhead cameras while maintaining clarity at eye level. I put the clear IR blocking cover behind the ghostplate cover. To be even more discreet, I would advise not using the plastic frame that ghostplate ships with and instead buy a thin silicon plate holder. This will also do a better job of keeping dirt from getting in between them.

Edit: I forgot to add, the ghostplate only works if its perpendicular to the ground and most newer cars are made so that the plate rests at an angle for the cameras to read more easily. Trucks and RVs don’t have this problem. I just bought some adjustable tilt brackets on Amazon to solve this.

https://www.ghostplate.com/ghostplate-20

https://www.sunflexzone.com/collections/us-canada-mexico-plate-covers/products/ir-invisible-plate-anti-alpr-infrared-filtering-cover-north-america-vehicle-covers