I am not a lawyer, but I know of cases where eating and drinking establishments have been sued for serving to impaired patrons or for letting them drive away. It sucks for them, but in order to get a liquor license, the implication is that the bar or restaurant are acting as professionals who would be expected to have the experience to judge when someone has had too much. This is of course not true in the real world and especially not true of athletes, who can give false impressions of sobriety.
Pelle Lindbergh's death in our area really started a debate on drinking, drinking by athletes, and the responsibility of servers.
As for the original driver, suing someone for being the victim of an accident is probably the surest way to have your suit thrown out.
For the tow truck driver, 5-7 minutes, or even 15, may not have been long enough to move a car out of the way, especially if you are seeing to the driver. The reason tow trucks (and cars) have emergency blinkers is to provide a warning to other drivers. The tow trucks lights and blinkers were probably sufficient to warn away drivers who weren't drunk, distracted, and stupid. BTW, the
Illinois Good Samaritan statutes could have applied, but only if the tow truck driver is considered a 'first responder', which I doubt. I am not a lawyer, so I don't know.
Read this
List of Sports People who have died during their playing career. Outside of sports-related injuries and plane crashes, the number one killer is vehicle crashes, usually automobile.