TheGenerator says:
... have Albert come in coughing and out of breath ...
Delaying and staggering the arrivals would not be overly suspicious, though we only got a Partial Success, so these arrivals may set the timing for more rolls, rolls that would be called for anyway, and this way it spreads out who makes these rolls and exactly what they are.
TheGenerator says:
... Would following the 3 of them from a distance be possible with Albert's awareness? ...
Awareness could help, but only in as much it will mean you probably won't lose track of where they are while they are close enough for you to perceive them. The roll in question here would be more about whether you keep them close enough...
TheGenerator says:
... He's not very sneaky though ...
... and not be noticed.
This seems like a tricky endeavour to maintain for the whole trip back.