I would read the entire ordinance. then purchase a db meter. Our local ordinance says sound levels must be measured at the property line at the time of the issue. So you can't go by the sound levels in the manual or go out and measure at 2:00 in the afternoon when a complaint or restriction is at 5:00 in the morning. There is also a time limit on how long a sound can be above the limit, just can't remember how long that is of the top of my head. This allowance is intended for operations that work early in the morning such as garbage collection. Our ordinance also allows for operation of equipment outside of the allowed times when "prepping for a sporting event". I'm not sure how that would be defined and whether or not prepping for a tee time is considered a sporting event, but it really makes it easy to get out of if we ever had an issue.
We had to buy a db meter to check operating noise levels of our equipment for our OSHA required hearing plan. I've used it multiple time to fight noise complaints early in the morning. A sound investment.
You can find db meters here:
http://www.grainger.com/search?searchQuery=db+meter