StaceySue,

How scary! I have to go with the majority here, and encourage you to find a route that feels safe. Whether you need to watch over your shoulder or not, you shouldn't have to wonder. Give yourself some peace of mind.

Definitely go and talk to the police. They need to know about this guy. If you feel threatened, they really need to know.

The thought of carrying a gun sounds scary to me - what if you crashed? Could you really pull it out fast enough to do any good? So many "what ifs". Even if you just point it at him, or even just show him that you have it - you don't know how he might react to that. I wouldn't confront this guy. I agree with Karen's suggestion to go over (with your DH - absolutely NOT alone) and meet him, ask him politely to not follow you, and try to be nice (but not so friendly that he thinks he can come over & visit). I wouldn't call the cops on the guy at this point without first asking him to stop, giving him that chance (although he had plenty of chances to not try to intimidate you, already). After that, if things don't improve - definitely. Neighbors can be tough to deal with - I would try to be amiable before doing anything that might set him off. Like lph said - make yourself less interesting. Less interesting and less accessible.

Stay safe out there.