Self-administered CPR?

Is this good medical advice?  A recommendation currently being passed around the internet gives this scenario:

"Let's say it's 6.15pm and you're driving home (alone of course) after an unusually hard day on the job.
You're really tired, and frustrated……Suddenly you start experiencing severe pain in your chest that starts to radiate out into your arm and up into your jaw.  You are only five miles from the hospital nearest your home.  Unfortunately you don't know if you'll be able to make it that far..."

"YOU HAVE BEEN TRAINED IN CPR, BUT THE GUY THAT CONDUCTED THE COURSE DID NOT TELL YOU HOW TO PERFORM IT ON YOURSELF!  HOW TO SURVIVE A HEART ATTACK WHEN ALONE?  SINCE MANY PEOPLE ARE ALONE WHEN THEY SUFFER A HEART ATTACK, WITHOUT HELP, THE PERSON WHOSE HEART IS BEATING IMPROPERLY AND WHO BEGINS TO FEEL FAINT, HAS ONLY ABOUT 10 SECONDS LEFT BEFORE LOSING CONSCIOUS[ness]. WHAT TO DO?"

"ANSWER:
DO NOT PANIC, BUT START COUGHING REPEATEDLY AND VERY VIGOROUSLY.  A DEEP BREATH SHOULD BE TAKEN BEFORE EACH COUGH, THE COUGH MUST BE DEEP AND PROLONGED, AS WHEN PRODUCING SPUTUM FROM DEEP INSIDE THE CHEST.  A BREATH AND A COUGH MUST BE REPEATED ABOUT EVERY TWO SECONDS WITHOUT LET-UP UNTIL HELP ARRIVES, OR UNTIL THE HEART IS FELT TO BE BEATING NORMALLY AGAIN.  DEEP BREATHS GET OXYGEN INTO THE LUNGS AND COUGHING MOVEMENTS SQUEEZE THE HEART AND KEEP THE BLOOD CIRCULATING. THE SQUEEZING PRESSURE ON THE HEART ALSO HELPS IT REGAIN NORMAL RHYTHM. IN THIS WAY, HEART ATTACK VICTIMS CAN GET TO A HOSPITAL."

[Momto3]

I have heard this before and I do not believe it is valid.  Check out this link:

http://www.hoax-slayer.com/survive-heart-attack.html

Maybe one of the doctor's will respond so we'll all know for sure.