Most of them are quite courteous Brad; probably wouldn't last too long otherwise.
Nice of them to volunteer. What with all carriers and other stuff splashed around by the tuner-uppers he may not have even noticed your carrier; his filter on USB side took care of your other sideband. He may not have even realized you were on AM. And if you zero beat him, his lower (bass) cutoff on LSB probably even eliminated your carrier in his passband. Most of those Ops sound like 100 or 150 to 2.4 kHz guys. Bet your carrier quieted his AGC though,.. well, depending on what kind of receiver circuit he had.
Are you working on the ARRL awards? I think it was a neat idea to spread the W1AW/xyz's around the country.