From the perspective of someone who is actually bipolar, this situation is still shocking, even having had the illness my whole life. For Sextons antics to have been 100% because of the illness, he would have needed to have been having a manic episode that was of a magnitude that would be off the charts. During a manic episode, a person feels euphoric to the point of delusional behavior, and engages in impulsive, risky, spur of the minute decisions. Such decisions are often monetary or sexually related.
During a manic episode, which is what this is if it is bipolar, you would see some delusional behavior. But episodes are like earthquakes, they can be measured for severity. For him to be lying in the middle of the road, and acting so strange, I would think that there was something else, and not just his illness that caused this outburst. In my entire life, I have never had an episode this severe. Manic episodes of this magnitude are rare.
Even so, if it was totally his illness that caused this he will need a lot of help and will probably need to be closely monitored for at least 6 months. Either way you shake it, this is a huge hit for FSU.