If you've had too much to drink you should let somebody else do the driving. If you can't find anybody, you've got two really good options:
LYFT - Sign up here, or download the app on your phone and use the promo code: SURVIVEADUI in the payments tab and get $50 of credits towards your first rides. After a while you'll wonder why you drove at all in the first place.
UBER - The classic. Download the app, use the code tomf11765ue or click here to sign up and get $20 off of your first ride.
Hey - why not use both and ride around as much as you can? Both are incredible- just tap your phone, somebody comes to you, drives you anywhere you want, and it's much cheaper than a cab. Beats a second DUI, takes the stress out of driving, parking, and worrying if you've had too much to drink. They're essential.