The protective film is called Preserve and the exterior easy-clean coating (I would not call it a film though) is called NEAT. Using razor blades to remove the Preserve film will damage the NEAT coating, even if you may not see the damage it is still there. The Preserve will need to be warm in order to remove it. Do not try to remove it cold. Using a hair drier may help and then you will likely have to remove it strip by strip - it is still probably going to be a pain unfortunately. You are also likely to leave some adhesive behind. You can use acetone to remove the excess adhesive, but be very careful because while the acetone won't harm the NEAT coating, it will damage both the paint and coating of the window sash and frame and there is no warranty for that damage. If you can wait until spring it might be easier...but that is up to you now. Good luck

Stunning it may be (or not). But if you are concerned with privacy why would anyone do this? There are solutions to let light in, have a view of who's at the front door, and still maintain privacy. These solutions involve transom lights, side lights and door lights above eye level. Another option is to use partial or full height glazing and install movable wood louver panels on the inside, which can be open in the day time and closed at night as may be desired by the occupants.

You could always grind the surface down (the ENTIRE lot). The prints are now 'in' the concrete. I'm guessing the weight of the foot/body caused a slight change in the SURFACE of the concrete. This would have shifted the direction of the surface aggregate to have a different look. Kinda like vacuum lines in a carpet. The direction change of the pile changes the appearance of the carpet. When finishing concrete the pros sweep it or 'brush it' to give it a specific look. I'm guessing your body weight disturbed this brushing enough to cause a visual change. Technically there is nothing wrong with the concrete...but it is an eyesore.

Removing sticky film left on windows is never an easy thing.. right? It can be sometimes very tricky to remove a window tinting but there is solution how to remove window tint. Use your hairdryer! It is very effective at removing old window tint from the house window. If you are planning to install window tint again, I can recommend you a brand called Veilish. Recently I purchased and used it. It's very easy to install and remove by myself!