That story is true too.
Billy took the Cadillac we provided to the airport in Dallas in the middle of the night, parked it only paying for an overnight space, and bought a one way ticket to Kentucky. Weeks later, TAMU gets a bill from a wrecker/impound yard for storage and towing fees.
He did reach out to our AD shortly after taking the job up there but cooler heads couldn't prevail and like with you guys, he refused to "sign on the dotted line". That prevented him from returning.
As for the drinking and all that, Billy enjoyed himself a lot. After wins especially. A handful of places took care of him really well. They had a number to call when it was time for him to go. One of my good friends now, was one of those guys on the other end of that phone. Billy likes blondes, but had beer goggles from time to time too.
He carried cash but rarely ever had to use it. His "fun" money was spent on any and everyone around him that treated him well and allowed him privacy. You'd order a drink and ask for your tab and get told that Coach got it already. His way of thanking you for not bugging him that night. After a loss, he wanted to go out but didnt want to talk to fans.
He's haunted by demons IMO. There is a lot of anger upstairs with him and some regrets whether he'd admit to them or not. He is however a kind man. There are more stories but that's a good sample.