Common area used as farm

I hope someone can answer this. Our HOA owns a lot which has been designated to be a future parking lot. In the 27 years this community has been here the money was never available to start the parking lot. The last 16 years the Board gave a few residents permission to use the property for a beautiful garden. They grow produce and share with any residents who want some produce. Because they were given permission from a previous board they can't claim prescriptive easement. Our power hungry new president is going after doing away with this farm, which is a beloved fixture here, for months now. She and her friend which was appointed to this hand-picked board and are both realtors. They claim we could be sued if someone gets sick on the produce. This is a specious argument as they want to put in a horseshoe pit which has sand and dangerous spikes coming out of the ground. Yes I know it is not normally thought to be dangerous, but certainly just as dangerous or even more dangerous than produce!!!!! I know they will need a permit from the city to do anything they want to erect here such as a gazebo, another suggestion. Davis-Stirling Act says it is never in the best interest of the community to have realtors on the board they will spend money on cosmetics and amenities to attract home buyers and forego spending money on needed repairs, which is happening here. Any suggestions about what can be done to stop this? Nobody but this out of control board wants to see this happen. We are at their mercy and they have none.Thank you