[serf]

People will steal/vandalize it simply because it's strange and (probably) expensive itself, not only for the cargo.

For historic context see the early adoption woes of traffic and speed cameras.

A siren, cameras, and GPS feedback doesn't help against a molotov cocktail thrown with a mask, from around a corner, or high above; and lots of people don't like the idea of robots roaming the streets.

[amelius]

> lots of people don't like the idea of robots roaming the streets

OTOH, they are probably less of a nuisance than delivery trucks blocking the streets.