I didn't say there was a noise ordinance. Since you're telling me there's no freedom "to conduct a funeral w/o being harassed," I'm just asking you if there's a freedom "to sleep without loud noises."
No, there is no such Freedom protected by our Constitution. There may, in some places be some local laws. Or you can buy enough land that you can't hear anyone outside your property. Or, in some places you can nag the local gov until they put restrictions on the airport that was there when you bought the house. But that last would be "not freedom" for other people as opposed to "freedom" for you.
Certain towns have laws against loud noise between certain hours of the evening/early morning. These go into effect every night, cover large areas, and as far as I know, the courts are OK with those. Certain towns have banned demonstrations near funerals, which only go into effect at the time and place of the funeral. The courts have ruled against those. I would think more people would question that seeming inconsistency. But it's more fashionable to stick up for Westboro, in the belief that it makes you a first amendment hero...
Most people understand the distinction of, and increased protections afforded to, political speech. Westboro, and this kid for that matter, are making unpopular political statements, which are specifically the kind of speech we MOST tried to protect. That's quite a bit different then noise ordinances shutting down parties or loud music at night. There's no inconsistency there.
And even better, while the government shouldn't attempt to punish this kid for playing F the Police, it's completely reasonable for someone to decide they no longer wish to be in a business relationship with him. Government censure vs. private individual censure.