With a video player/editor, locate the I-frames (or simply the best looking ones, playing frame by frame), extract them, then use _any_ photo editor to sharpen,

With a video player/editor, locate the I-frames (or simply the best looking ones, playing frame by frame), extract them, then use _any_ photo editor to sharpen, adjust contrast/luminosity, enlarge, etc, and print them. It is not rocket science and will give you something to show to the police/whoever, in about an hour of work. Before investing real money on this, be aware of the legal value of these videos: do we really see the burglar forcing the front door? Taking your property? Is your neighbour entitled to film that area? The answer strongly depends on your local laws.