Cellphone anomalies

The other morning (Saturday, July 23, 2011) I took our dog to nearby Boughton Park (”BOW-tin;” as in “wow”) alone.
I had my cellphone, a Droid-X Smartphone, with me.
I have an “app” on it called “Life-360.”
My wife can log her computer into Life-360 and see where my phone is — me, since I carry my phone.
Life-360 is fairly reliable. It shows where I am via GPS satellite.
It shows where I am in the park; even when I go off the road.
I decided to walk our dog on the paths around the ponds.
Life-360 should show exactly where I am, nowhere near the road.
But no, it was showing me in Victor, which is nowhere near Boughton Park.
My wife had logged in, and I was shown north of the Thruway.
My wife began to think I’d been bopped over the head, and my phone stolen.
She called.
Answering a cellphone while trying to control a charging dog on a leash is almost impossible, but I attempted to answer. The call was ID’ed as her.
On a Droid you get two choices on the display screen, answer and send to voicemail.
I did the answer-swipe and was sent into the ozone.
Some strange anomalous screen appeared; I had no idea if I’d answered at all.
Seconds passed.
Finally “hello-hello” from the earpiece.
Yes, I had answered the call, but I was off in the ozone.
This has happened before.
I attempt to answer a call, and my cellphone jumps into the unknowable.
Or sometimes the answer-swipe doesn’t work.
I follow a previous standard procedure, and off we go!
Beyond that, how are the 911 guys supposed to find you, if your cellphone has you someplace other than where you actually are?

• “Boughton Park” is the old Fairport Water Supply. It has large ponds. (Fairport is a suburb east of Rochester on the Erie Canal.) —It’s a town park, owned by the three towns that bought the water-supply when it was retired. It can only be used by residents of the three towns, and we are residents of one of those towns. It’s sort of a nature-preserve.
• “Victor” is an old farm-town about 10 miles north of where we live, and about seven-eight miles north of Boughton Park. It is now a suburb southeast of Rochester.
• The NYS “Thruway” is Interstate-90 (and I-87 New York City to Albany), the interstate across New York state, also a toll road. —Boughton Park is south of the Thruway. The Thruway is about eight-nine miles north of where we live.