OK this wasn’t hard to figure out but I still had to learn it anew:
Either just don’t get a pedicure in winter (or mud season or a day of mud season in the middle of the winter)… but that would be a sad lesson
Just wait inside until everything is dry!
Never wear those flimsy flip flops outside in these conditions, no matter how close the car is to the salon!
And if you do, make sure that no one sees you!