No plate is required if you are cool.
Honestly, HPD and the Sheriffs do not care, it is the small local towns around here that will mess with you. Jersey Village, Spring Valley, Hedwig Village, etc. are all notorious for going after people for the littlest things.
I have run without one for years, had the Stillen bracket for awhile but it just never 'looked' right on the Z. I was pulled over once for "speeding" and they wrote me up for no front plate, this was just south of Dallas in a small town. The no front plate was thrown out of court.