How to report police sightings in Google Maps

Perhaps this is a new feature and they're still working on the bugs, but as for now the locations are FREQUENTLY OFF. I see no way to edit the location of a report. It seems to place the report where you pressed the button and often times it's too far down to be accurate. Coming up on a cop or a stalled vehicle with little to no warning only to hear the notification when it's too late, that isn't helpful. I hope to see the ability to edit the location of a report, including past reports you've made and other user's reports, because that is the one major bug I'm experiencing with this feature. Thank you.