Philz Coffee (at least the one at Golden Gate and Larkin) has this. Before you can access any non-HTTPS pages you get a Facebook page with a big "Check-In" butt

Philz Coffee (at least the one at Golden Gate and Larkin) has this. Before you can access any non-HTTPS pages you get a Facebook page with a big "Check-In" button and a very small "Skip" button.