Get out right now and return all materials and make sure you get a signed paper saying they were returned. They will probably try to charge you something, but the pell grants *might* take care of those costs. Do it immediately though and read other posts in the exit-interview forum.
You can get financial aid through the community college as well, and any money left over from the grants they cut you a check to help with living and travel expenses, unlike ITT-Tech. Go to the CC's financial aid office or call them up, did you already do a fafsa this year, if not do one at
http://fafsa.gov and send it to the community college when you get to that section, do this right away so you can secure aid before you start.