Carter,
Not sure who you talked to at BGE; but the inside lower firebox on my 20-25 year old BGE cracked. They asked me to send pics and warrantied the replacement; no questions asked. I had a choice of waiting on local dealer to get delivery and pick up or pay $25 shipping and get immediately. They also replaced the lower grate, even though they only have a one year warranty.
My experience was great with them.
Corresponded with a guy name Bruce; top notch.