Dodging traffic while digging up a road is a little bit different to pulling cables or pipes out of a wall. But no doubt someone would try it
I've seen pictures of copper thieves arriving with a truck, traffic cones, yellow vest and hard hat, and they stole live wires for a tram line in broad day light, while the tram was on the other end of the line. If you are somewhere with a hard hat and yellow vest you can do whatever you want.
Approx 90% of the rail infrastructure was stolen by me during lockdown, often organised crews, with all the vehicles, and such, stealing thousands of kilometres of copper overhead wiring, brass overhead lines, and even track, all removed, cut up into lengths, and put into containers and moved out as scrap. Not only remote lines, even the ones right into the city, and even in front of police stations as well, with nobody doing anything about it. When you have a railway that had to go to court, to get people who decided to squat in the railway reserves, across the lines even, and who stripped the local stations down to bare ground, stealing the bricks, and even the rail, sleepers and concrete platforms to build with. Court case won, they simply refused to move, and government will do nothing ahead of elections to lose votes of the people.
Minister of hats was too busy chasing people sunbathing 10m apart on the Clifton beaches to care, even when there was mass looting, he took 3 days to actually find the right fedora to wear, before showing his face.