I am posting the following for Randy Clark of BGI:
Last Thursday and Friday (10/29-30) numerous tickets were issued by IMPD to commuters on the Monon for being on the trail between dusk and dawn (my unofficial info says about 20).  I strongly suspected this was an aberration, not a policy change, and that turns out to be the case.
Upon notifying the Bicycle Coordinator for the City, Andy Lutz, he jumped on it.  DPW, IMPD, Office of Sustainability and Indy Parks are all collaborating to sort this out and take a proper course of action.  In the meantime, I am told these tickets will be rescinded and will not have to be paid.
If you, or anyone you know, has received one the these tickets, please send me an email with you contact info including name, physical address, email address and best phone number to contact you.  My email address is rclark@bgindy.com.  We want to make sure this all gets cleaned up quickly and completely.
BTW, hats off the the City for addressing this quickly and efficiently.  We are a Bicycle Friendly City!! 
Randy Clark, Bicycle Garage Indy, Founder and President