Parking on a sharp curve in the road

I live in a H.O.A. in Southrn California. It is a manufactured home complex. We own the land and pay H.O.A. fees for common area maintenance, clunhouse, pool, etc.
MY QUESTION: We have several sharp curves in the complex and when a resident allows a visitor to park on that curve it is very difficult to get around it and at the same time avoid oncoming vehicles. We do have a 48 hour restriction for street parking, BUT, I feel there should be no parking at anytime on any curve in the complex. ANY IDEAS ON HOW I CAN GET THE H.O.A. to do that. I sent them a letter and spoke at a meeting regarding my concerns and the fact that if an accident occurs we could be liable for allowing that type of parking. I don't expect them to do anything about it. What can I do as a resident??????????

It may be that you own the land but not the streets. Do you know for certain that the HOA owns the streets? If not, contact law enforcement and see what they have to say about the parking.