The three times I've recently reported someone for being abusive I was contacted within 10 minutes by a GM asking to talk for a little bit to clarify. They asked to clarify the who/what/when/wheres (little weird, cause I put those in the report) and then said thank you and good day.
I'm relatively sure even if I'd have logged off everything would have been fine since I put detailed info and chat logs into the reports. Two of those three times they messaged me in the middle of my next duty and then when I said I was busy in an instance told me to message them once I had left the duty which ended up being about 14-16 minutes later.
Long story short: Just keep playing or leave if you have to it doesn't matter a whole lot. If they need your input they'll ask for it and patiently wait for a response.