Physics feel on the driving and robot arm is nice and heavy and solid and stable, good.

I don't love that the first thing that happens when I drive out of the driveway is that the camera view gets blocked. Maybe remove that rooftop so it doesn't get in the way?

I kind of wanted to get negative-points if I knocked down buildings or ran people over.

Using the CTRL/SHIFT keys may not be a good idea for a WebGL build

If it's possible, it would be nice if I could save myself from a tipped-over truck using the rescue arm

I think if you have some engine sounds you can get away with making the truck accelerate even more slowly, which will help to teach the player that this is a game about being very careful.