Newly applied film needs time to cure, so leave the windows up and the interior glass alone until your installer says it is ready; a little haze or a few small water pockets during that period are normal. After curing, clean with a soft cloth and a non-abrasive, ammonia-free cleaner, and keep sharp edges and scrubbing pads away from the film. Your installer will give you the aftercare specific to your vehicle. here.
Ask a local tinter whether they carry Kepler film or can get it. For more information, see quick quote.