I hadn't realized this was a thing.
Since I'm not an resident of Los Angeles and rarely watch local news on the television, I didn't know that this issue was coming to the forefront. From what I understand, the LA city council considered an city ordinance to ban the use of smokeless tobacco at all venues this morning. This would include not only Dodger Stadium but also any place where Baseball is played on the professional or amateur level; such as parks, organized high school games, etc.
Per Dennis Romero at the LA Weekly:
This morning the City Council's Health, Mental Health & Education Committee will consider a motion by Councilman José Huizar that would prohibit the products at city baseball venues.