@cloudwalking
At first I thought that fake keypress would not work if you were expected to open the door; meaning youd actually have to perform the correct press to get the door open...
But you could conceivably either fake a press before - or do a bunch of presses afterward to fake the sequence...
I guess this really needs to be tested - specifically against the ability of the camera/viewer to be able to tell when the 1/4" depression of a key really occurs.
I think the take away here, though, is for anyone using a keypad to act like they pressed 10 keys rather than the requisite 4# sequence. Ideally with the 4 numbers non sequntial in your finger movements.
I've done this for year when entering my pin code for making payments or cash withdrawals. I position my hand so that it obscures all the keys, and then move one finger a tiny bit that does the actual key press, and another finger in an obvious way to make it seem as if I'm pressing another key as the one I'm actually pressing.