I must have not understood you correctly, were you on the right shoulder behind the bus, then turned right onto the right the shoulder on the intersecting street?? must not because that would put you in the danger zone (inner side).
either way. be extra careful. drivers are not usually looking for cyclists. glad it worked out ok this time.
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2010 Kestrel RT900SL, 800k carbon, chorus/record, speedplay, zonda
2000 litespeed Unicoi Ti, XTR,XT, Campy crank, time atac, carbon forks