Going 70 in 60 on IH 10, can I get it dropped? Also insurance question.

So got pulled over today. 70 in a 60 on IH 10 between Kirkwood and Beltway 8. Isn't there a Texas/City of Houston code that shows 70 is fine? Or is it 60 inside the urban area?

Also, my insurance wasn't printed out (updated). I still had the policy, but I got ticketed for that too. Do I just show up and show them that I have insurance?