'This BMW in front of me has his R turn signal on.'

Reply: Sometimes when the sun is bright, it can hit the lense and look
like its flashing when it isnt by the driver.

Said that I was not allowed to pass at that spot. Said it was before the
'pass with care' sign. But, he did not give me a ticket.'

Reply: Good thing, cause it appears you were in the wrong for trying to
get around him then.

'Any good tips on getting paint (or maybe tire rubber) off a white
bumper.'

Reply: Theres a good product called 'Black Streak Remover' which RVers
use. Works good. Available in Walmart for about $4. If that doesnt
work, try a bit of carb cleaner and rub lightly. Wash it right away and
put some wax on it.