female coworker eating in husbands car?

well im not sure exactly. but anyways, i kept seeing empty juice/soda cans in the van, that isnt mine, and is attracting bugs. so i ask my husband. my husband said he and his cowrkers eat in the van during break. he said theyll go order something to eat and bring it in his car to eat. but im having a bad feeling about this, it wont be innocent if it was a female hes talking about. idk, i feel like guys dont do this to each other. am i right or just overthinking?