Absolutely DITTO!frankly, i don't go to dog parks anymore because of these kind of situations and irresponsible dog owners. If I want my dogs to socialize I do that with dogs I know. I would not go back there.
You unfortunately ran into the common problem at dog parks! Bad owners with aggressive dogs.
Much better to meet with other responsible people with well manered dogs.
BTW, I would have hit any dog who actually bites or tries to bite my dog, esp. when he was a puppy!