Generally your friend should be able to travel within the United States without restriction. That said, be sure that there were no specific restrictions placed on his release. For example, in some cases aliens may be under a restrictive supervision order. If this is the case case with your friend, he'll want to be sure to be in full compliance with the specifics of that order.
Best of luck,
Peter J. Loughlin, Esq.
Goldman & Loughlin, PLLC
4100 Corporate Sq., Suite 163
Naples, FL 34104
Representing Clients in All 50 States
Note: The above answer is provided for informational use only and should not be construed as legal advice or legal opinion. One should not act or refrain to act solely based on the information provided. No attorney client relationship is created unless a retainer is signed by the attorney and the client
Sometimes people are released on the ISAP program, where they have an ankle bracelet or need to check in periodically. If this applies to your friend, he or she should make sure to comply with any restrictions arising from that program. The friend should also make absolutely sure not to miss the court date, or else he/she will be ordered removed (deported) in his/her absence.