Show me the signs

I was walking the neighborhood and I ran into these things, and I wondered, what do they mean?

Just looks like adult graffiti of some sort.  I do recognize the short name for Verizon.  Does this mean my neighbor is getting FIOS?

What is Sign "B"  ?  Why so cryptic?

Can't this be any neater? Really city officials.

If you know what this stuff means, let me know.