Around here in the 'burbs, most of the landscaping companies could be required to hire a detail!
They tend to block almost a full lane in front of houses with their equipment and act like they own the road. Literally some of our major roads are narrow enough that traffic becomes one way, one side at a time due to these guys.
Once our chief disbanded the Special Police, he let lots of roadwork go with no details. If officers were unavailable, refused it or had exceeded their mandatory OT policy (rather restrictive, arbitrated and chief won), there was nobody at these jobs. More recently he's giving work to out of town officers, sheriff's department, etc. when his FT POs aren't available. A couple of FT POs retired and were appointed as Special POs so that they can work details. A selectman told me that they are having trouble finding Special POs here. Last I knew, the BS that the chief had them go thru might account for that, don't know what is really going on here.