It depends on who is providing the rental car. Some companies allow return trips whereas others do not. Ask the company you are planning to rent from for the most reliable information.
You need to be more specific in your question. Return a car to a dealer, return a leased car, return a borrowed car to a friend, return a rental car?
You can rent a car in the United States and return it in Canada. You just need to make sure that you return it to the same car rental company.
Not returning a rental car anywhere in the country is considered Grand Theft. It is a Class a Felony in most jurisdictions. If they have your name and you do not return a car, for all intents and purposes, you are a felon.
A one way rental is when you collect a car from one location and return the car to a diiferent location. ie London to Edinburgh.
You arrange a car rental for a European trip if you want to rent the car in London and return it in Stuttgart, Germany at www.autoeurope.com. Just go on the site and type in your locations desired.
You are usually charged for 2 days if you return it more than 27-28 hrs after picking the car up and charged for an extra day if you do not return the car by midnight on the date it is due back. The return time for all rentals is determined at the time your rental is picked up. If you do not return your car when it is due they will charge each day as if you were still renting the vehicle. With most rental companies if you don not return the car within a week from its due date they will report the car stolen and you can be prosecuted on grand theft auto charges
Typically, no. In most contracts, they'll explicitly state that they're not responsible for items which are not reclaimed from the vehicle prior to its return to the rental car agency.
Yes, most rental car companies do charge a late fee if the car is returned late.
When you exit the freeway just follow the signs to the rental car return, and it will show where you go for each company.
In CA it's just 5 days after the agreed upon return date.
That depends on how long it has been in their possesion and whether the car was yours or a rental. If it was a rental you had no right to give your friend the car. If it was your car and your friend has been in possesion for it longer than you expected, then yes, it is theft.
Well, that's a pretty general question. If you are in San Diego I would recommend http://sensible-car-rental.com as that is my establishment :) In general, just go to your favorite search engine and search for "Car Rental in [your zip code]". This should return you a list of car rental agencies that are close to you.