I worked in a tint shop for many years, you might see what appears to be bubbles but is only trapped water/lubricant. If it doesn't clear up in a day or so in this heat then there's a problem. The scratches you see may just be from using the squeegee and not cleaning the window film after. When it drys up try cleaning the inside of the window with an ammonia free cleaner. If the lines don't come off then bring it back.
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