Uber implemented a kill switch to prevent government law enforcement from accessing (potentially) incriminating or sensitive information during onsite investigations. When activated, the kill switch would effectively cut off access to Uber's data for the location being raided.

Expecting companies to fully cooperate with state agencies might not always be realistic... I understand why authorities might prefer to directly seize materials or data. It eliminates any potential delay or non-compliance: they basically cut the bullshit.