so i have had this same thing happen to me several times... a few i was ridding shotgun and was not the DD for that night.
ive determined that to get the best results you have to search for the item from CAR HOME. then click get directions and select maps, then click go! and confirm the address is in that little "To:" box. I have searched it from several other places and found that sometimes it does kill the address number and puts you in the middle of the street. SUCKS.
In the end when i follow the above steps i have not had one problem. Also when you click go it shows you the turn by turn and if you scroll down to the bottom you can always confirm that the address is showing correctly. If you forget to do that u can always click the menu you button and then route info and then click the little box in the lower left side of the screen.
Hope this helps!