MSP Airports
KMIC - Crystal is probably the closest if he is on the West Bank campus and the gas is much cheaper than KSTP.
I don't know if there are ramp fees at KSTP, it is much more corporate than Crystal.
We are based at KANE, KeyAir is very nice, they might have a car you can use as well - give them a call. It is a bit further from the U, tho.
Let me know if you have any questions.