Who you gonna call?

Last night at about 1:30am there was a couple fighting in front of my house. I looked out the window and there was a man raising a stick at a woman and the woman was wielding a very large kitchen knife.
I called 911. The police arrived quickly and the couple dropped their weapons and continued their battle verbally. Two cops cars had arrived and the four men got out and asked what the problem was and were basically ignored by the arguing couple.
It turned out that two of the cops had locked themselves out of their car. They began throwing things at their own car in anger. One cop found the knife the woman had been wielding and began to utilize it in picking the lock on the police cruiser. All four police then turned away from the fight and began furiously trying to unlock the car. It took them about 15 minutes.
When they got the car unlocked they all the left and I watched the man trail the woman down the street as they continued to scream at each other.
Is there anyone else I should be calling for these situations? It seems that police protocol does not allow them to intervene---if they are not asked or they do not witness an assault themselves. :?