I'll be looking into a non emergency number or maybe take a trip down to the local station and ask them.
Please do ask your local police. Here in the Chicago suburbs, we are always to call 911 for everything. Even to report a stray cat.

We are NOT to call the police on a local phone for anything that requires dispatching.

Edited to add: Please do call 911 the next time. I've wondered about this myself and now I'm resolved to do it.