If your bike got hit while it was legally parked then an insurance claim is not going to affect your claims record. It will be a "not at fault" claim. Unless you have full coverage insurance, it may be a battle getting a claim started - but given that this was essentially a hit-and-run, I'd pursue it "just because". If the other party is at fault, you won't have to pay the deductible, either.
As far as the other person is involved is concerned ... you have witnesses, and phone calls from insurance agents and, if necessary, police officers pointing out that they were in a hit-and-run, tend to motivate such people.
Collisions with less damage than the deductible normally aren't reportable ... but if the other driver is not co-operating, then that doesn't apply.