There is seldom a time here except in winter when I cannot hear either a lawn mower, weed eater, blower, or some sort of pump motor. It is absolutely annoying. For about a year I flew a Bonnie Blue flag off my front porch hoping it would annoy my neighbors. Most thought it was a Texas flag... DOH!
Craig is right, there are passive/aggressive things you can do to annoy them back. Just don't get arrested, always make it seem incidental, though sometimes I think a "death ray" would be nice. It would be nice to be Gru for a day! You could set up some outdoor "security" lighting that shines into their windows. I'm sure that you could be louder than them if you wanted to be. You could make a habit of blowing off your yard whenever the wind is blowing their way, I'm sure that being in Nevada there must be dirt and dust around to use... and if the wind is usually in their direction you can set out some fly traps, they smell like death warmed over... or there is always Limburber cheese discreetly placed. Get a rooster. Get a bigger compressor! Get an old car from the junkyard and put it on blocks in the front yard. Put an old refrigerator out there, knock one hinge off it. Get some fake pink flamingos to decorate the yard and some old tires cut them in half (like a "C" shape), paint them white and use them to decorate too. Perhaps soon they will move if you junk things up enough, keep a cloud of dust in the air, make it stink, and use the outdoor "security" lighting.
At the end of the day it does nothing though... hopefully whatever the neighbor is doing wont take long...
Yes people are annoying. Seriously, the best thing you can do is just try to not let it bother you... just chill. Don't let it ruin your day. There is really nothing else you can do that wont hurt you more than anyone else. You don't need the stress and if you nurture it, it will grow.
J