The trouble with Decibel Meters is that they can be off as much as 10-20%, depending on the latest calibration. How the heck can they prove it was my scoot making all the noise, and not the extraneous noises from off the street helping to add to the noise level.
I just won't spend any money there if I'm not wanted. It would be curious to find out if they are going to ticket the local rock/punk/funk groundpounding cagers out there as well? Probably not, since then their mommies and daddies would have to pay the fine, and we all know that those are the people that elect the local idiot villager politicians.
Now I've been a politician in a small town, but we never even came close to this level of inanity in the 7 years that I served the community.
Don't ride through (if at all possible) and don't stop to spend money, that's my opinion, for what its worth.