HD, I know that the runway inspections always used to be opposite direction, full lights on, it only took a couple of seconds for the vehicle to clear the runway - in fact you could see the wheels turning as soon as you started to say 'Checker, clear the runway.......' (well wouldn't you be a bit smartish if some bloke was throwing 100 tonnes of metal at you at 125 mph?
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One time, there was a 27R inspection going on with a Brymon -7 coming in. Checker told not to go east of block 15, Brymon told not to go west of block 16. Job done, box ticked, and as far as I am aware, no trousers soiled. I forget the name of the controller involved, conveniently...... but I bet it wouldn't be even thought of nowaadays......