When I visited my local PD after my L-1 apointment, they stamped and signed a copy of my application, then handed it to me in a Manila envelope per-addressed to ISP Firearms Div. I had to take that to the PO and mail it myself. All fees were paid.
Why? Who knows? My PD wasn't very clear or informative on procedure. I think I'd better call ISP tomorrow and find out the status of my application.
I applied for my license 3/15/12 (didn't use L1) at the City County Building downtown. Will update when I get it.