I wasn't sure it was still going on, what with the rain & all, but at 2pm, my 6-year old & I swung by, & the festival was going on in full force, and very well attended too, despite the chill & drizzle.
There was plenty of free parking nearby, including the Metro garage on Viers Mill Rd.
An added bonus was that all the kiddie rides (mostly Moon Bounces & inflatable slides - altho I think the Titanic Slide is in bad taste) were FREE (altho the weather & the rule about taking off your shoes meant a lot of muddy & wet feet & socks). Several booths from nearby businesses (I had an interesting conversation with an acupuncturist) There was free face-painting as well, raffles, and give-aways, including bandanas from some car dealership. And live music of course.
What made things easier was that you didn't have to go & buy tickets first - you paid cash directly when you got your food.
Emma & I fed ourselves well for ~$10 total (incl. $3 worth of drinks), and let's see anybody do that well at the overpriced Taste of Bethesda or DC, where samples average $4-8 EACH. All samples were $1 in Wheaton. Some samples of course were bigger than others. For example, you could get a spring or garden/summer roll for $1 (normally $1.75-$2 in a restaurant), or a good sized slice of pizza. The only "rip-off" we ate was $1 for a single Anchor Inn crab ball the size of a ping pong ball.
We nibbled on satays, spring roll, Thai ice tea, iced coffee, Dippin Dots (for the kid), crab soup, crab ball, a smoothie, pad Thai & grilled corn on the cob (my girl's favorite item). Considering everything had to be cooked quickly on grills heated by portable tanks, all things were quite good (nothing burned, dried out, or undercooked). The longest line was for Ruan Thai's tent - not sure it was because of popularity, or the line just moved more slowly. Most lines moved quite quickly. Food ranged from hot dogs & hamburgers, pizza slices & 1/2 subs, to penang curry, Singapore rice noodle, pupusas & tacos.
Restaurants represented included Sabang, Dusit (Thai), Yokohama, Hollywood East, Nam's, Ruan Thai, Suporn (Thai), Ledo's, IHOP, Anchor Inn, Domino's, Dippin Dots (which I've never liked), Rock Creek Catering, a Filipino deli & market I'm not familiar with, a Carib market/deli, Chicago Bakery, Country Chicken (Peruvian), El Boqueron, El Pulgarcito (Salvadorean), Los Cobanos (Salvadorean), Lucia's, Marchone's, Taqueria & Pupusaria Luisita, & Wooden Shoe Bakery.