If you had the plates, it would go like this:

"I'd like to report a hit and run." (first incident)
or
"I'd like to report being forced out of my lane and off the road by a vehicle, causing injury to me and my bike. The driver who forced me off the road left the scene of the accident."

In both cases, the accidents would be investigated, and most likely the drivers involved would be in trouble for leaving the scene of an accident. Furthermore, it would give you the opportunity to find out who they are and get their insurance information so that you could file a claim for the damage to yourself and/or your bike.

And best of all, those people who got in trouble for the trouble they caused you, would tell at least one or two friends or family members, meaning that at least in some small way, awareness would be heightened for a few people.