Senate Bill 6231 defines hostile architecture as “elements designed to restrict the use of public spaces by individuals experiencing homelessness.” (A PDF of the original bill can be viewed here.)
In the past, those elements have included fencing, large boulders and gravel. If the elements are erected specifically “to prevent people from sitting or lying at street” level, they would be prohibited.
“No, your honor, we weren’t trying to stop anyone from sitting or lying at street level, we have just become infatuated with neoarchitectural design, including spikes, cemented rocks, barbed wire, and other very-legitimate hyper-modern artistic design elements. We even paid an artist. The internal emails you subpoenaed will confirm all of this.”