Bobby P,
This past summer I too experienced the mysterious crack stemming from the lower left portion of my 2000 RT/10 windshield. It appears (so the dealership says) as if there was a small chip at the base from a rock hit that was almost invisible. Anyway as I washed the car one hot day with cold water, it cracked for about 1 foot running up the glass. Big dissapointment, as I was scheduled for Track Days at Road Atlanta next day. Anyway, I have State Farm as well and was able to get the glass inside of 3 days. One thing, make sure the glass is for the right application. They ordered a hardtop windshield (GTS) first and it was not the same as the RT/10 install.
Availability is no problem with or with out antenna.