Z Burger is offering a fun promotion since the Baltimore Ravens won their playoff game last night: Free Burgers!Z Burger will offer their burgers for free today, Sun. January 13, 2013 when customers say the secret password “SuperBowl” in-store from 11am – 2pm. This offer is only valid at their White Marsh (8415 Honeygo Blvd, White Marsh, MD 21236) location. Limit 1 free burger per person. For more info, click here.