Darn, GG, I was so hoping everything would be perfect for you upon arriving at TV.
How awful for you and all the surrounding neighbors. Some people regardless of walk or level of live have no taste or class.
When I lived in CT, the HOA imposed a fine of $75, if after the first 3 warnings, nothing was done to recify the issue. Another $75 fine would be imposed the next month, and so on. The fines would appear on their monthly maintenance fee statement.
Per my current HOA by laws, fines cannot be invoked, however, the property management company can and do disable their pool pass if any of the covenances are ignored after warnings have been issued.
There just has to be something the management can do. If there isn't, this issue should be brought up at your next HOA meeting.