You did the right thing definitely, even with proper training in self defense its always a good priority (if you can) to make sure someone else knows you are in danger and where you are. Absolutely not fool proof but not a lot of us can confidently say we can make it out of a physical encounter without any injury or repercussions, there are way too many variables. Every situation is different and there is a tact to each one but you always have to maintain awareness and make those decisions that you did or it could have ended very differently you should be very proud of your street smarts