College campuses flag bicycles at the end of the semester for removal. If they gave Flock notice and resonable accommodations to remove their equipment then Flock fails to, it could be considered abandoned.

• the contract is terminated
• they don't remove their assets

so either you remove them and let Flock reimburse the work or you can use the assets to cover the costs. – Is what common sense says, your laws might be more nonsensical.

I wonder if the college can then sue for illegal surveillance

They didn't leave it somewhere. They left it in my front yard.

So then there shouldn't be any issue with rendering them inoperable, right? Bag the solar units, put the Flock Sock on the cameras. If you can't legally take them down, just prevent them from working.