You should be OK. It totally depends on the College. If they want to screw you they can as janaandolon said. But as i have seen as long as the college has reported your employer's information to UCIS (sevis reporting) you are good.

There is no way they will find out you are laid off unless the employer contacts college/UCIS about your termination.

Bottom line, keep looking for new job and no need to worry.

Hope it helps