make sure you check out Angell Hall and the Grad Library. Also the Big House near Chrysler arena. Theres a really sick C ledge outside of chrysler arena too. If you do any of them I'll give you 5 dollars.
I don't think it would be possible to get close to anything. All the good rails (that I've seen) are in highly trafficked/important areas. The best one that I mentioned would be the C ledge by chrysler arena. That one is kinda out of the way.
well coing out of best buy, you trun left on to grand river, take thta maybe 2 miles, you will see a few car dealerships on the left and brighton bowl, there is a street right behind brighton bowl where the rail is on the right, behind a bank.