Codes and Puzzles over Lunch

We went out for lunch to Mongolian BBQ and at the end the waitress handed us an electronic hand-held survey. After filling in the survey, the machine reset itself to the login page - 'Please enter code...'.
Remembering the trick Richard Feynman used to crack the code of the 'super-safe' safe at Los Alamos, I tried the most obvious combination '1-2-3-4' and it worked!! With code broken, I was tempted to really mess up the survey data by rapidly entering false data for all the tables. I can understand why hackers do what they do or why stolen fruit is sweet. Can't wait to try '1-2-3-4' somewhere else.

A little later we passed by a local locksmith - Vogel Lock and Safe. The last place you would expect recreational puzzles but Ann Arbor has it surprises.

Quite an innovative way of window-dressing.
More Vogel's Rebus puzzles.