If the government is only restricted from buying the data, then they'll just have someone else buy it. Palantir is not the government. So they can buy the real time feed, analyze it in real time, and give the real time results of that analysis to the government without issue.

Restricting the government from buying that data does nothing. If you want to stop the government taking advantage of the data, then you would have to outlaw the collection of the data altogether. So that the initial collection of the data by anyone, is illegal.

Personally, I don't think that's gonna happen. There's way too many people making way too much money telling the government who hangs out with who, who cheats with who, and so on and so forth.