There was no signage denoting "park at your own risk" inside or outside of the motel lobby/parking lot area.
I wouldn't call myself a "good customer" as this was my first time I can recollect staying at this particular chain. Also, it was my girlfriend who purchased the room, not myself.
The owner was not forthcoming with information about his insurance agency, although I suspect I could get more information from his corporate affiliation. The first event that brought his potential liability to my attention was an employee who notified me the owner possessed insurance for this sort of thing.
Again, the sum of money involved, as you may have guessed (a single window broken), does not warrant entering into court. If items in my truck had been stolen, this would have been a much different case.
If nothing else, a reimbursement for our night's stay would be a good gesture that the business is concerned about customer safety.
Thank you very much Guilty for your help.