I don't offer legal advice, nor do I even claim anything I say if anything more than my hearsay opinion, but I do like to hear myself type.
The "model anti-gambling bill" that was once put up as the way all states should regulate gambling originated in Alabama as I recall. Overall, it equates poker and poker playing with organized crime. In essence, the idea is if you are a regular poker player, you are part of organized crime.
That said, Alabama has, if I recall correctly, a tolerance for non professional gambling. You must not make money from it - take a rake or charge a fee - and it must be in the privacy of your home, with your friends.
You can mess this up by charging a membership fee, or renting a commercial building. You get on iffy grounds if you advertise your game publicly.
Was your building a residential structure? That would seem to be he most damaging part to you concerning the gambling part.
A reality is that most times the police don't do a raid unless someone makes a complaint. You might give some consideration to who might have complained about what and figure out how you can address that issue.
If this is all because you were taking up someone else's non reserved parking, then maybe you can make some of it go away by promising not to hold any more events.