"likely not, even if he was DUI, if his use of car was necessary to save his life. I can't imagine a jury convicting anyone of DUI if they just drive a block or two to escape death."
Your two answers above, although accurate, do raise additional questions. First, while it's smart not to speak to the police about the incident, it's not necessarily without peril for Woods' driver's license. Most states, including Florida, have something called "implied consent" with respect to traffic accidents. While you may not be compelled to speak to police about your collision (Fifth Amendment, and all that), they state may use your silence as a reason to strip you of you operator's license. They would for any other motorist in a similar circumstance. It will be interesting if they do so for Woods.
You may also be right about the DUI conviction. OTOH, at the risk of sounding like Obama, the police have acted stupidly in this regard. How can any competent investigator rule out drugs or alcohol in an accident that is so incredibly suspicious - the near destruction of an SUV, a fire hydrant and a tree, all within 40 yards of the driver's front door, and a single vehicle accident to boot. It screams impaired driver. A blood draw should have been required. It was an injury accident, after all.
And, if Tiger's defense is "I was running for my life", then he's implicating his wife in DV case. Again, if this were any other perpetrator/victim, people would be at the station house awaiting the arrival of their attorney. There's no spousal privilege in DV cases. Tiger would be forced to testify against his wife. It happens ALL THE TIME in DV cases all across the country, every day.