It's a bit of a strange country the UK, Google ASBO for a set of rather far reaching laws, that don't need a crime to be committed.
One thing that is a fairly major difference is bail, depending on the crime, it can be just a ticket maybe followed up by a time to appear in court, or maybe taken to a police station for a few hours and then bailed to appear at a magistrates court sometime later which can be months as crimes go up in seriousness you might get held overnight and appear before a magistrate to be bailed or remanded in custody.
There are no bail bonds in the UK either your safe to be let out (possibly with a tag or a curfew) or your not. It takes a lot to be kept in jail before trial. Even if you will be in jail eventually when sentenced, which maybe a year away. If you behave yourself before your trial, ideally taking positive steps in your life then you maybe even get a suspended sentence or even a conditional discharge.
So it's highly unlikely that in this case he will have been kept overnight in cells let alone been chucked in to prison on remand.
Under an American system, i guess it would depend if he has enough money to pay a bail bonds man or not. There are plenty of offenses he could have been charged with even before asbo's there was the good old breach of the peace.
Insulting Glaswegians in such circumstances would probably do it. He's liable to end up in hospital at some point, after some rough justice anyway, unless things calm down. The Police may be doing him a favor by charging him.