Actually not a huge detour if you swing through De Doorns , not many people aware that they can.
The Squatter camp lies just before the bend below the N1 sign on the map, so you can turn into De Doorns and bypass the trouble, then reconnect to the N1, there is also another earlier turn off as you enter the Hex River Valley from the Cape Town side, that will connect you to De Doorns as well and you can then reconnect to The N1.