The five new rules imposed Monday joined 13 oft-ignored rules that can mean fines up to $100 and even arrest.
Commuter Renigio Suzene said he supports the new rules.
Straphangers "think they can do anything at the expense of other people and their property," Suzene told the New York Post.
Cassandra Warren objected to the ban on moves between cars.
"It smells sometimes, especially if there's a homeless person in the car and after a long day at work, or if you have your family with you, you don't want to have to stay in that car for a long journey," Warren said.
Commuter Kevin Kelly called the rules "nonsensical" as he sipped his coffee through a small hole in the lid.
"Is this a closed container or an open container?" Kelly asked in noting the definition of "open container" was murky. Open containers are banned.