> people driving up and down your neighborhood at all hours of the day with a "ad truck"
I doubt that would be an efficient use of money, and that doesn't really seem like crier behavior.
And is that kind of noisemaking legal in most places?
If I need to specify the criers only use their own voice, then consider that specified.
> Imagine if every fedex or ups truck and amazon van you see was also blaring a loud speaker advertising businesses
Blocking that double use is part of why I tossed "independent" into my earlier post.
And door to door salesmen coming onto my property definitely don't count as criers.