KXNT Cuts Off Sharron Angle Interview

I was listening to the Mark Levin Show today and he was interviewing Sharron Angle just after 10:30PM on Monday and Levin was interviewing Sharron Angle. (Levin comes on at 9:00 PST here in Vegas) And a few minutes into the interview, the airwaves went dead. and they stayed dead for some time. No more Sharron Angle interview.
Being a conspiracy theorist, I would think that KXNT did it on purpose. Or that Harry Reid and his supporters bombed the transmitter location. however, I also know that KXNT also has problems with dead air at night.
So, did KXNT do it on purpose or just coincidence?