Pop grammar

I hear language is a living thing. In retirement, I have not been studying the evolvement of our language as much as I should. Hence, I am probably exposing my obsolescence and ignorance of current trends when I ask for your observations on two grammatical points in the May Record.
In the Pop Christianity column, the paragraph beginning "thinks of the haggard shoppers…" I am wondering about the use of "I" in the phrase "with you and I." In the next sentence I see "if there was a place…" Is "was" as correct as "were" in this subjunctive phrase?
I am stimulating my own thinking in this question as much as I am trying to get your response.