Were you told specifically that it was the IRS? because something is not matching up here, IRS does not collect money for Universities, I think you're dealing with two separate issues here
Actually no, I wasn't. I was pretty angry when I called my bank and I asked them why I couldn't access my account and if my tax return had hit my account before it was emptied.
The lady on the phone did seem a little confused and I agreed to come in on Monday, because it was already past their closing time.
So it's possible that it's just one huge fucking coincidence that my account was frozen on the same day my tax return was snatched up... but I suppose what nmwando says could be correct. I'll just have to wait until Monday to find out.