Welcome to NYC fellow Mets fan! You were supposed to get off the M60 in my hometown Astoria, Queens (stop before the bridge) and take the N train. But taking the A or D was actually best option ( just 1 stop to Columbus Circle).
I can’t wait to hear your thoughts on Citifield and the food! I’m partial to Sweet Chick which I will have at Tuesday night game vs. the Dodgers (it’s also NY Knicks night)
If you are going to try a NYC food truck then I would recommend Uncle Gussy (Greek) on 52nd & Park weekdays and Jamrock Jerk (Jamaican) on 52nd and 6th on Tuesdays.