Because you are not a traditional student who will be living on campus, the atmosphere on campus may not matter as much – but the actual town may matter more. Conservative, liberal, religious etc may be what your husband deals with as a police office on a daily basis.
If I were you and just picking a university, I’d go with Tex Tech because it has the established civil/environmental program and is cheaper. If you want to consider the other things like location, that’s up to you. Tech and A&M will be the most recognized names outside Texas too.