You might be suprised how well remote tutoring can work. Usually the student takes a picture of his/her homework and sends it to the tutor. The tutor then walks them through one or two problems, after that the tutor prompts the student to walk the tutor through the process for the next problem. Voicing this process out loud can actually be very beneficial for learning how to solve a problem.
Advantages to Remote Tutoring
You can call and get help with just one or two problems and only pay for 10 minutes if that is all you need.
Allows the student to get help even if they have no way of physically getting to Easy as Pi.
It is possible to even get help after hours or last minute.
If they aren't feeling well and can't make it in they can still get help.