When an Advertisement Doesn't Work

I was in San Francisco's Union Square at the beginning of the month and noticed a rather large billboard which has shrunken in significance since first put up. The poster is of Alex Smith, the former starting quarterback for the San Francisco 49ers. The Nike poster (I'd post a picture, but I cannot locate one) boasts that "Speed Kills" and the irony in that phrase is that his current replacement is one of the fastest players in the NFL. The way things are looking, the replacement, Colin Kaepernick will end the season as the starter for the 'Niners unless something goes horrendously wrong. My question though, will the billboard of Alex stay? Or will it get out of town along with him?