passengers already offloaded
nah, by the time you find a set of steps and a bus in the UK the brakes will be stone cold again.
Depending on the energy involved,
for the 757 BTMS reading of 5- 7 "caution range" Says delay take off and inspect again after 1 hour.
for 8 and above "Fuse plug melt zone"
clear runway immediately. Unless required do not set park brake. Do not attempt to taxi for 1 hour. Tire wheel and brake replacement may be required. (regardless of whether the plugs have melted or not)
To put it in context , for the 757-200 the Fuse plug zone starts at 30 million foot lbs of energy(per type A brake) .
Thats a max manual braking RTO at 116,000kgs from 140kts. on an ISA day.
If you have to do that you are almost certainly going to need an engineer anyhow to sort out whatever caused you to stop as well as check out the brakes etc.
I still say your chum at LIRN was in the right to sit for a while to let everything cool off. Though if there is no BTMS on the 734then I might have been getting an engineer to check the brakes etc out.