Not nessisarily. It depends where you live if you get a ticket for radar detectors. In NM, you can have them. But seeing that you're from texas, I don't know if they're legal there. I think they are illegal there. (I'm saying this because I got a ticket in texas 2 weeks ago, and on the ticket it had a check box for having a radar detector.) I'd talk to someone who knows before putting one in.
Ahem, attention everyone. According to state laws, radar detectors are only ILLEGAL in Virginia, Washington, D.C. and U.S. Military reservations. In the U.S. at least they are LEGAL everywhere else. If they put radar detector on your ticket, it SHOULD NOT affect the fine, only how lenient the judge is willing to be if you fight the ticket. If it does affect the fine, fight that shit!!