What you can do:
Sign this petition and contact your legislators; let them know you are a constituent and oppose Ag Gag Laws.
You can also deliver a hefty blow to those pushing this legislation, by not consuming animal products. Even if they weren't attacking your amendment rights, these assholes are in the business of exploitation - Confining other beings, doing whatever they want to them to get the most use, and then when the animal is all worn out and used up, selling him/her to a slaughterhouse/butchering in-house, to make a profit on the body. No regard whatsoever for that individual's needs such as clean air, socialization, play, freedom, not getting their throat slit, etc.. So, they're basically not very nice people and don't deserve our dollars.