Good advice here for sure! I second the phrase 'guard your GN'.
I bought a locking collar from:
Cargard Column Lock
I lock my GN whereever I go. It's locked right now just sitting in my garage. Makes me sleep better at night
FYI, the locking collars are not manufactured anymore, but the gentleman there was able to locate a used one for me and totally refurbished it. It looks absolutely like brand new. Powder coated red too.
These GN's can be stolen in about 10 seconds, so be careful where you park it!