Freeman Coliseum migrant facility to close at the end of the month; Lackland site to remain open through summer More than 700 teens remain at expo hall as of Friday Tags: Migrant shelter at Freeman Coliseum Expo Hall to stop housing unaccompanied teen boys SAN ANTONIO – The temporary shelter at Freeman Coliseum that houses migrant teens who crossed the U.S.-Mexico border will close at the end of this month. The Department of Health and Human Services Department confirmed Friday that there are no plans to extend the contract at Freeman’s Expo Hall, which has an internal capacity for up to 2,100 beds.