Stanchions & Ropes For Concessions?

Last night as I waited to buy a coke, I had to contend with the usual (traditional?) 30 - 35 people lined up in front of each service person at a concession stand. These lines of people make it difficult to walk to the restroom or other areas, as the lines span nearly the entire width of the concourse.

Would a stanchion and rope system, such as that used in the PMAC, possibly work better? It seems a better way to line up, say, 150 - 200 people rather than choosing an order taker and then taking your place in a long single file line in front of them.

In a situation like last night, when most people stayed until the end, and concession sales are waning or ending, the stanchions ccould be pushed against the concession stand, or into the nooks beside each stand, as the game winds down, which would still leave 90% or more of the concourse available when thousands all try to exit at approximately the same time.