I received a good response form one of my associates. I thought I'd post it because it was a concise answer.
1. Yes, Google has several ways of determining where you are searching from or about and then shows ads accordingly.2. Indirectly, yes it can make the click less expensive because it could raise the clickthrough, thus raising the quality score, thus lowering the required cost per click. Is it worth the effort to create unique ads for each state? No. It makes things very complicated to measure and difficult to manage.