Re: lost my only key :(
If you get it towed, don't forget to push the tow button below the radio to deactivate stability control (i think that's what it is). Could mess up your car. Read about it in the owners manual.
Also, if it got stolen, it would probably get appraised north of its actual value, given how fast prices keep falling--you could use it as an opportunity to upgrade.
Be fatalistic about it.