Check on EBay for the Roadside Companion.  It is an inexpensive way to stay safe on the road.  It is the only portable emergency/roadside GPS system on the market at $49.  You receive all the great benefits of roadside assistance, plus real-time tracking on your own web portal.

Services include towing, jump starts, fuel delivery, flat tire repair, winching/stuck-vehicle service, lock-out service plus reimbursement for expenses up to $500.  The services are part of a one year subscription that is very inexpensive ($8.25 month) and with the number one roadside provider in the U.S.

Comes with a cigarette lighter adapter and can be used in any vehicle you own including when you get a rental car. 24/7 operators can pinpoint your exact location to alert police, fire, ambulance, or roadside help. Emergency roadside assistance 24 hours a day, 7 days a week at the push of the big red button.

The roadside service has saved us numerous times and the web tracking is fun to toy with.  Their web site is roadsidecompanion.cm