Re: Still looking for an electronic lock...
Some people do rather get carried away trying to shoehorn technology as a solution just 'cos, don't they?
I am reminded of a startup that wanted to help people that lost their house keys, by offering to 3D print a spare on demand,... so you'd have the b*llache of getting your key scanned, then waiting for them to print and drop off the crappy plastic key to your house. Assuming they were open, of course.
Or, you could, instead of getting your keys scanned, just get a couple of copies made, and leave one with a friend or relative, and perhaps tape one to an old loyalty card, and pop it in your wallet. That way, you aren't waiting for some neckbeard to do fire up the Ultimaker.