According to Suzie-Q :
I get along with this neighbor just fine but am worried about my
approach should I initiate a conversation. I don't want to come
across as angry and destroy a good relationship.

Any suggestions?

Say that the mail delivery person complained ;-)

In that way you get the blame put on someone other than yourself
or the lady across the street, and it's easy to avoid being
angry in such a conversation.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.