A bus packed with dozens of San Antonians left a downtown parking lot on Thursday night headed to New Orleans ahead of yet another S.B. 4 hearing on Friday morning.

The State of Texas is appealing a San Antonio judge's decision earlier this year to temporarily block the law which would eliminate "sanctuary cities."

Both sides of the argument will be heard at the 5th Circuit Court of Appeals in New Orleans, and the state is expected to push for full enforcement of S.B. 4.

Several groups took off on the bus to join other groups from Houston and Dallas, all hoping to stand up against the law which, they say, "encourages racial profiling."

S.B. 4 would have required local law enforcement to comply with federal requests to hold undocumented immigrants in their custody.

U.S District Judge Orlando Garcia ruled that the law would erode public trust and make neighborhoods less safe. But proponents of the law say that it would do the opposite by improving public safety.

The groups are expected back in San Antonio on Saturday.