Is father dead or deceased? Either way, at this point he's in the Highland Meadow Cemetery, which is where I recommend parking when looking for this cache (see the listed coordinates above).
You can check your solution on GeoChecker.com.
[Puzzle] 1. Qnq rkvfgf qrprnfrq.
2. Vg frrzf gur prafbe jrag n ovg bireobneq.
3. Nibvq pybguvat pbagnvavat gur yrggre "E".
[Cache] Raenyrpvna