maybe i can help a little. first off, i had a chip/small crack in my windshield last fall, and my insurance (MA) covered the entire replacement. i'm guessing TX is like NC where I am now, in that insurance doesn't cover glass replacement. even here in NC it's covered as regular damage, so my $100 deductible would apply. i don't know if you can try that.
in any event, i had the lexus-recommended guy do the job, he screwed it up and replaced it. i then started noticing wind noise, and asked him about it, especially since i noticed the glass didnt say lexus on it. he said after-market lexus windshields don't say lexus, so i said fine. he put in a replacement again (#3) and still the same problem. i took it to lexus for my 20k service and mentioned the issue. i took off in my loaner and held it hostage until they finally got the guy to admit that he should've used a real lexus windshield, despite its huge price tag (why did he care, my ins. was paying?). my insurance company paid him the difference of the initial $700 one and the $1200 one, and he put it in. no problems since. now if i was paying out of pocket, i don't know what i'd do.