Hey! Good deal!
You got it to bust loose and didn't trash the choke or chop up the barrel!
Clean and chase the threads, oneounceload's suggestion should work fine since you didn't need to expand the tube into the rifling with a removal tool.
Get some choke tube grease and keep the tube cleaned and lubricated.
Remember to remove the tube at least once a day while you are shooting and once a month while the gun is being stored and the internal tubes will work out fine for you EXCEPT if you are doing this one thing with the gun,,,,
If you are shooting steel shot loads, I strongly recommend you get a special steel shot choke tube such as a Colonial Choke Tube Company version that puts the actual choke constriction out in front of the muzzle and away from the barrel threads.
The part of the tube that is actually threaded into the muzzle has no choke constriction at all, it is cylinder bore and this allows steel shot to pass through the threaded portion of the muzzle without peening the threads.
Yes, one of these tubes will add an inch or so extra length to the barrel but so what when using one makes choke removal becomes a non issue. HTH