British police kept up round-the-clock guard outside the embassy until December 2015, when the operation was scaled back, in part because of the cost, which had exceeded 11 million pounds (over $17.5 million at the time).

The deep state has deep pockets to guard Assange to keep him safe I assume but they're really not the ones paying for it.  Assange is still a wanted man now that he is free, they can capture him more easily after he walks out the door, maybe for jaywalking.