My theory is that the have to do a mystery task in Italy before the laundry tasks. And it is here were we have bunching due to hours of operation.
They very well may have to do a task on the way from the Airport into the city. The airport is a ways out of town, and they might have to stop first at such places as:
Capaci
Mondelo
The Catacombe dei Cappuccini (My favorite place for them to wander through)
La Zisa
or the Villa Whitaker Malfitano
all have historical ramifications. And then they would have to continue on into Palermo. This might make sense since we have spotted at least two vans approaching the Piazza Verdi and the Teatro Massimo on Via R Settimo which comes from the direction of the airport.
Other possibilities are the Palazzo Pretorio and Sala Garibaldi
Fontana Pretoria in Piazza Pretoria
Monreale Cathedral.
Just some last minute wild guesses.
Looks like the losers will be on TES at 8:39AM EST or 7:39AMCST