I echo the comments of angus and Ernest.
I support speed limits (despite my sometimes spotty driving record) but I think they should be set based on safety requirements, and not made artificially low.
Philosophically, I think it's better to have less restrictive laws that are strictly enforced when they are broken, than more restrictive laws which the majority of people ignore without much of a consequence. Such a situation breeds disrespect for the law and removes the social stigma from lawbreaking.
Then you'd agree with Lawrence v. Texas because that's exactly what those type of laws were. And this is also a good argument for legalizing prostitution as well. Not that I disagree though, that's one of the reasons why I think prostitution should be legal. As for Lawrence v. Texas though, it was just becuase those laws were so ing stupid.