Just had to abandon a trip to the supermarket when my front wheel started making awful graunching noises. I've driven home (very gingerly) but am worried that I've done more damage (I am only assuming it's the wheel bearing that's gone as there are ball bearings all over the drive now ) My main question is would it be safe to drive to the garage or should I get them to come & tow it? (don't want to get stung for unnecessary charges)