I salute you for what you did. Cops will on occasion need help from citizens if outnumbered. Generally, if there is more than one suspect per cop, they call for another unit to come and assist.

EX: I was riding along with the crime suppression unit of Gwinnett Police and we pulled over a vehicle with 5 male passengers. The cop I was with went over the radio " yadda yadda cop talk 5 male occupants" and within MINUTES, there were 5 other officers on scene. It was pure awesomeness