My hometown too, but I haven't been back there in so long I don't really know how to answer your questions! I don't recall anywhere where I felt was unsafe to ride when I lived there. I used to ride out on the roads all of the time and I was just a teenager. If he only wants to ride on trails all of the county parks have them. I think there's some new rail trails that have been built since I lived there too.
http://www.traillink.com/TL_Active_P...ch/default.asp
(looks like there's a lot of new rail trails!)