At this point, I think everyting Cruz does is going to draw fire. If he had done as you suggest, he would have been criticized for thinking he was exempt from the laws that apply to the rest of us. I think this is much ado about nothing.
I am not anti-Cruz and fear that I may be construed as such, so let me make myself clear. I don’t think he did anything wrong, as much as I think it was an opportunity to drill a point home. This could have been a Tea in the Harbor, burn your draft card, refuse to move to the back of the bus moment, and he let it pass.
You are right. He is obeying the law. We’ll have to see what he has up his sleeve. Heck, he’s only been on the campaign trail two days now. Certainly there is a learning curve.