Do they have a new policy saying that if you live within a 30 mile radius you cant check in?
It appears so. A friend was notified of the hotel CANCELLING their reservation on the same day they were supposed to check in, even though they had booked the room almost 2 months in advance!! If this is how the company wishes to do business, I highly recommend staying elsewhere.
Get an answer from Comfort Suites Milwaukee Airport staff and past guests.