Dude, I did this for a co-worker who locked her keys in her car awhile back. She only had one key, so there was no alternative and she didn't want to pay a locksmith. Told her I'd get her in her car. I work at a school so I grabbed one of their wooden door wedge blocks and a piece of stainless filler rod from the welding class.
She drives an Escape, I just pulled out the upper door frame corner and inserted the wedge to hold it, took the filler rod, inserted it to figure out how I needed to bend it, put it back in, pushed the unlock button and was in. Took me less than 5 minutes, you really need something stiffer than a coat hanger, the hanger is usually too flexible to get the job done.
You really need to get more in touch with the MacGyver within you!