Possibly more/less visible. Speed radars reflect off surfaces facing it. In practice that means the front, the reg plate, sometimes the side mirror for most cars. For the cyber truck it's going to be extremes depending on the radar location - completely front facing one may be hard to bounce, but the ones over the street may hit the flat front perfectly.

It still won't work around speed cameras like the ones in UK (it's both a radar and photo camera) or variable speed cameras which use reg recognition.