Definitely looked like a TIGHT turn on that road in the picture. One of the biggest "rookie" mistakes in this field would be using a regular car GPS system as opposed to a commercial GPS that will plot out specific routes that a commercial or placarded vehicle may use... This often results in extremely costly mistakes, as most 'prohibited' roads for trucks are 'prohibited' for specific reasons, ie., low bridges and bridges with weight limits that cannot handle such vehicles... There is a CSX railway bridge in New Jersey that is nicknamed the "career suicide bridge", because the underpass running below has a clearance of 10'8... And you guessed it... At least 3 de-roofings a week, sometimes at considerable speed.
Here is something else that is major facepalm fodder... Common sense really does not grow in everybody's garden... I'd be hesitant to attempt a "eweie" on this road with a Mitsubishi Fuso, much less with what this guy is driving...