I was finally able to look up the actual ordinance about noise…stupid old bat should be aware of the law before she threatens someone with it.

Sec. 19-58. Excessive noise declared a public nuisance.
(b) Noise limitations. The exterior maximum sound level on any property with a building or structure, or containing outdoor or open areas, including, but not limited to, outdoor entertainment venues, shall be as follows:

(2) In all areas of the City of Tampa other than those areas listed in subsection (b)(1) above, measured at a residential property receiving property line closest to the noise generating property where determinable:
a. 7:00 a.m.—10:00 pm: Sixty (60) dBA.
b. 10:00 p.m.—7:00 am: Fifty-five (55) dBA.

(c) Exemptions. The provisions of this section shall not apply to:
(8) Noise which results from the reasonable use, recreational enjoyment or maintenance of residential property located in the City of Tampa including, but not limited to, noise made by children, lawn mowers, chippers, clippers, blowers, tools, power tools and tractors;