Say I'm out riding my new Trek 7200 and 10 miles away from my apartment I get a flat tire. Is it OK to ride the bike back to my apartment or will that bust up the wheel? If it is OK, do I bike fast or slow? If not, what other options do I have other than walking it back? In an unrelated matter, is it a driving violation if my trunk rack covers up my license plate? Any and all advice is welcome, many thanks.