3F

Why would Ingrid be meeting Laurence Proudy?

I wouldn't think she would but Proudy's explanation made sense and seemed to be the truth

I find it unusual that they'd meet in Boots! I, therefore, think it might just be a random meeting, as Proudy explained to the police. (As always, I add the proviso that I may be wrong, 🙂.)

I think Proudy is a liar and thief but his explanation seemed reasonable. I think the meeting was just a coincidence.

I believe him also.

I think the meeting was a coincidence too.

I too think this is just a coincidence, and a red herring.