Should I mention this in feedback?

[Olive]

I sold an item by having my counteroffer accepted.   Immediately the buyer emailed asking to reduce the price by $10.  I rejected the request, then he emailed saying he would give me "snacks and a beer" if i reduced the price.  I said no.   He then said he would pay in cash rather than by the direct credit stipulated in the listing.   I agreed, and we arranged delivery.   When I turned up to deliver the item (to uninhabited industrial premises) the buyer was there, and also some kind of "minder", who slunk around in the background, smoking and staring at me.   It felt intimidating and scary.   The  buyer seemed quite shy, and the exchange of cash for the item was fine, but the overall experience was unsettling and unpleasant.  

I'm wondering if I should mention this in my feedback.   In the end I got the price I wanted, but I feel somehow that his attitude cut against the unspoken TM rules of trust and decent behaviour.