I would encourage you to think about contacting the police not as a recourse for what happened to you but to at least try to prevent them from doing the same thing to someone in the future who will not be able to physically or mentally/emotionally handle the situation in the same way you did.

That was my mindset after I was the victim of a misdemeanor sexual assault by a stranger. I suffered no physical injury due to what I was wearing. And I had been assaulted before, so my immediate and enduring emotional response is "fucking pissed" which is an emotion I'm already very familiar with and am good at channeling into productive actions. But what he did to me easily could be the thing that makes another young woman say fuck it and leave the city altogether or he could have escalated and harmed one of the many homeless women on the street in that area, so I called 911 thinking about them, I gave my statement (multiple times) thinking about them, I testified at his trial thinking about them, and I gave a victim impact statement asking for mandatory drug/alcohol and sexual conduct counseling as his "punishment" because I actually wanted him to never do it again, not to be sent to jail for having done it to me. It's ultimately your decision, but I wanted to share my experience with you in case it's helpful.

So what’s the point of complaining here then if you’re not willing to actually do anything?

You should reconsider this. If she grabs you, it is assault and it is a matter for the police. She will continue harassing and assaulting people until there are consequences.