I guess I am one of the only one on the opposite side here. Sometimes a bike has to be moved.
About 4 months ago I had to pull an enclosed trailer to Wisconson (from NJ). The trailer is located on the ground level floor of a parking deck in the first spot (reserved for the trailer). When pulling the trailer out of the spot you have to immeditly cut left in order to avoid one of the pillers. On the left side of the trailer is a Bike. It was illegaly parked in one of those small yellow No Parking spaces, in front of an electrical box, or whatever. Anyway, it was impossible to get the trailer out with the bike there (it was very close to the trailer. So I walked up to the nearest police officer, and asked for help. We lifted the bike over several feet (had a fork lock) so that I could get out. Waiting around for the owner was not an option. The bike was of course handled carefully.
So I guess there are cases where bikes can be moved, it was his fault for parking in an illegal spot. (not that I haven't parked illegaly, the lot gets full) but it would have been nice if he wasn't right on top of the trailer as well.
FYI, not that it matters, but it was a Harley, and he got a ticket for illegal parking.
Jim