Heh...I was thinking of doing this same thing with a hoodie.
Another thing would be to mask license plates from automated readers....but that may just attract more attention to you.
Wonder if these work when the camera isn't in IR mode.
Usually, the camera simply has no IR filter so it picks up IR all the time. You can test your own cameras out by pointing a TV remote at them and pressing a button. The blinking should show up in the video.
In case others are struggling to watch this through reddit's video player, the person connected IR LEDs to a battery and taped them to sunglasses.