"Hot Pursuit"

Despite the "sanctuary city" status, schools aren't actual sanctuaries:

• Federal immigration agents entered a North Center day care and arrested a teacher Wednesday before searching each of the rooms without a warrant, a local alderperson said.

  Video captured two agents pulling the woman out of Rayito de Sol Spanish Immersion Early Learning Center at 2550 W. Addison St. around 7 a.m.

  The woman, known as “Ms. Diana” to parents and children, is heard in the recording telling an agent that she has documentation, but she was still detained. “Yo tengo papeles,” she says in the video.

  Ms. Diana had been stepping out of the passenger seat of a car when she was approached by agents and she ran inside the daycare center. The agents followed her inside before forcing her outside and putting her into another vehicle, according to Ald. Matt Martin (47th).

And if you flee from authorities who aren't bound by "no foot chase/car chase" policies, then US v Santana applies until such time as the current cases pending in the appeals process play out, probably a few years from now.