Yes, they put stadium restrictions in the firmware but the firmware does not know when the games are to be played so the restrictions are all the time. They put that in with the new firmware update.
FDC 9/5151, issued under 14 CFR 99.7 on "Special Security Instructions," restricts flight over stadiums during Major League Baseball (MLB), National Football League (NFL) regular season, NCAA football, and motor speedway events. The so-called "stadium TFR" prohibits all aircraft and parachute operations at or below 3,000 AGL within a 3 nm radius of any stadium with a seating capacity of 30,000 or more people when there is an MLB game, regular or post-season NFL game, NCAA Division I football game, or major motor speedway event occurring. This TFR applies to the entire US domestic national airspace system, and takes effect from one hour before the scheduled event time until one hour after the event concludes