[advisedwang]

They actually list specific uses in a separate policy [1]

> our use of the ALPR Data is limited to the following purposes:

> * To enhance your experience while visiting such properties such as, for example, by assisting in locating a lost vehicle;

> * To prevent unauthorized use of our facilities; and

> * To detect, investigate and prevent activities that may violate our policies, be illegal, or otherwise impact the safety and security of our guests and/or third parties.

[1] https://disneyland.disney.go.com/alpr/

[monksy]

It's also probably the same reasons the casinos are using them to.

Verifying who is there, why they're there there, CYA for when they screw up, and probably looking for reasons to remove you.