Interesting essay by L. Reichard White on Lewrockwell.com. It seems that police departments are increasingly using the admissions counters at clinics and hospitals as warrant/security/background check stations.
When people enter government hospitals for “care,” they must first show ID, provide Social Security numbers and identify themselves. A front counter person punches the information into an electronic system that signals local police if the person has outstanding warrants, citations, fines or is wanted for questioning.
Police arrive at emergency rooms even before the visitor gets in to see a nurse! See here.
The same goes for airports and other government “service” areas. Avoid them.