WTF…
I found it on tumblr unfortunately so I don't know the sauce… thought it interesting enough to post here. I'm sure smarter anons than me can figure it out from the image.
Yep, you are correct. There's no way to tell from this single photo. The car in front also appears to be carrying ballots - 2 vehicles in a row? I don't know if that is normal or not. It does seem fishy to me, especially with the biden stickers.