said by Glen T:However, I *could* disable both of them. Maybe that's the best solution -- caveat emptor...
There are a few wireless APs/routers that'll allow you to decrease signal power through their web-based configuration interface.
A bunch of D-Link APs will let you do it without cracked firmware, and you definitely can with any WRT54G(S) alongside some 3rd party firmware.
While I'm not
encouraging or condoning the practice of logging into the administrative pages of your neighbor's AP, it
might work without you having to shut it down completely.