Disgruntled: To be taken seriously, you need to identify yourself and let others know who you are. It would be interesting if you posted a copy of (exactly) the complaint that you sent to the FCC, also.
When I have provided the FCC with a specific complaint, I have received almost immediate responses. But of course I tell them who I am, provide them with my callsign, several ways to reach me (including e-mail, telephone, FAX, cell phone -- everything), and a great deal of information regarding who, exactly, I am complaining about.
If you have a "neighborhood" problem, including local RFI within your neighborhood, surely by now you know who is causing it. Name them. Provide their addresses. Provide substantiating evidence. The FCC will gladly step in and do something about it, but they do not respond to general complaints.
What if soy milk is just regular milk introducing itself in Spanish?